WO2017088767A1 - Soil conditioner, preparation method therefor, and application thereof - Google Patents

Soil conditioner, preparation method therefor, and application thereof Download PDF

Info

Publication number
WO2017088767A1
WO2017088767A1 PCT/CN2016/106958 CN2016106958W WO2017088767A1 WO 2017088767 A1 WO2017088767 A1 WO 2017088767A1 CN 2016106958 W CN2016106958 W CN 2016106958W WO 2017088767 A1 WO2017088767 A1 WO 2017088767A1
Authority
WO
WIPO (PCT)
Prior art keywords
soil
peat
organic matter
particle diameter
conditioner
Prior art date
Application number
PCT/CN2016/106958
Other languages
French (fr)
Chinese (zh)
Inventor
辛衷瑜
Original Assignee
辛衷瑜
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201510808988.9A external-priority patent/CN105268516A/en
Priority claimed from CN201510808990.6A external-priority patent/CN105295927A/en
Application filed by 辛衷瑜 filed Critical 辛衷瑜
Publication of WO2017088767A1 publication Critical patent/WO2017088767A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/24—Driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/08—Reclamation of contaminated soil chemically
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D1/00—Fertilisers containing potassium
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D3/00—Calcareous fertilisers
    • C05D3/02—Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • 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
    • C05G5/10—Solid or semi-solid fertilisers, e.g. powders
    • C05G5/12—Granules or flakes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165—Screen denying egress of oversize material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C2101/00—In situ
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2101/00—Agricultural use
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation

Definitions

  • the invention relates to the technical field of soil improvement, in particular to a soil conditioner, a preparation method thereof and application thereof.
  • Peat soil is a plant body rot, has a low carbonization rate, and its main component is organic matter. It has existed in nature for more than a thousand years and has formed a relatively stable internal structure.
  • the main prior art for using lignite, peat soil, peat, etc. for soil improvement is to chemically extract humic acid and prepare humate and humic acid compound fertilizer. These methods generally have low resource utilization and pollution in the production process. Moreover, the existing processing technology, methods and equipment generally can only process lignite into 200-mesh particles for soil improvement, with large amount of use, limited effect, low added value of products, and narrow market application.
  • the main object of the present invention is to provide a soil conditioner, a preparation method thereof and an application thereof, to solve the problem that the soil conditioner has limited effect on soil improvement in the prior art.
  • the natural peat soil containing more than 50% of the organic matter is mixed with minerals and processed into fine powder with a particle size of 5 microns or less, which is applied to soil nutrient supplementation.
  • the moisture content of natural peat soil containing more than 50% of the organic matter is 5-15%.
  • the organic matter content of the peat soil micro-powder soil conditioner is greater than 55%.
  • a soil conditioner comprising peat soil, the organic matter content in the peat soil is ⁇ 50 wt%, and the average particle diameter of the peat soil is 0.5-15 ⁇ m.
  • the average particle diameter of the peat soil is 8 to 13 ⁇ m or the average particle diameter of the peat soil is ⁇ 5 ⁇ m.
  • the content of the organic matter in the peat soil is ⁇ 55 wt%, preferably the content of the organic matter in the peat soil is ⁇ 60 wt%; more preferably, the content of the organic matter in the peat soil is ⁇ 65 wt%.
  • the soil conditioner further comprises a base and/or a mineral, preferably the base is present in the soil conditioner at a level of from 5 wt% to 10 wt%, preferably the mineral content in the soil conditioner is from 0.1 wt% to 5 wt%.
  • a method for preparing a soil conditioner comprises: crushing peat soil having an organic matter content of ⁇ 50% by weight to obtain a crushed soil; and classifying the crushed soil by grading and grinding, Peat soil having an average particle diameter of 0.5 to 15 ⁇ m was obtained.
  • the average particle diameter of the crushed soil is ⁇ 1 mm, and preferably the moisture content in the crushed soil is 5 wt% to 15 wt%.
  • the step of grading and grinding the crushed soil comprises: first grinding and sieving the crushed soil to obtain soil particles having an average particle diameter of 100 to 500 ⁇ m; and performing the first grain size of 100 to 500 ⁇ m. Secondary grinding and sieving to obtain soil particles having an average particle diameter of 30 to 80 ⁇ m; and grinding the soil particles having a particle diameter of 30 to 80 ⁇ m for the third time to obtain peat soil having an average particle diameter of 0.5 to 15 ⁇ m; preferably To obtain peat soil having an average particle diameter of 8 to 13 ⁇ m; or to obtain peat soil having an average particle diameter of ⁇ 5 ⁇ m.
  • the preparation method further comprises the step of adding alkali and/or minerals to the crushed soil, preferably, the alkali is added in an amount of 5 wt% to 10 wt% of the alkali content in the peat soil.
  • the mineral content is from 0.1% by weight to 5% by weight.
  • any of the above soil conditioners for soil conditioning comprising the adjustment of acidified slab soil, saline soil, desertified soil, rocky desert soil or heavy metal contaminated soil.
  • the application includes embedding the soil conditioner directly into the soil, or preparing the soil conditioner to be sprayed onto the surface of the soil.
  • the natural peat soil in nature is rotated and cut to a particle size of 1mm or less, and then processed by a multi-stage controlled orbital ball mill.
  • the average particle size of the powder is more than 3000 mesh using a pore size of 5 ⁇ m.
  • the addition of solid alkali mixed and ground into a mixture of fine powder can adjust the soil pH and porosity
  • the damaged soil such as the absence of nutrients, added to the corresponding minerals mixed and ground into a mixture of micro-powder can be quickly and evenly distributed in the soil;
  • the peat soil micropowder can be directly mixed into the soil, and can also be dissolved in water for watering, and the operation is simple;
  • Peat soil micro-powder soil conditioner organic matter content is greater than 55%.
  • the activity of various polymer functional groups in the original organic matter in the peat soil is released and exerted, thereby the agglomerate structure and material migration of the soil, Moisture retention and the like can quickly produce positive and beneficial effects.
  • it can also achieve rapid replenishment of trace elements, which is beneficial to soil microbial growth and soil organic matter performance.
  • the soil conditioning agent of the invention has rapid differentiation, complete nutrients, strong chelation, low dosage and high efficacy after entering the soil. There is no secondary pollution during the use process, the resource utilization rate is high, the effect is obvious, and the soil treatment is effective, which is of great significance for the current soil ecological restoration construction in China.
  • Figure 1 is a schematic view showing the structure of a grinding cylinder of a ball mill in accordance with a preferred embodiment of the present invention
  • Figure 2 is a schematic view showing the structure of a screen fence provided between different grinding chambers in the grinding cylinder of Figure 1;
  • Figure 3 shows a side view of the ball mill of Figure 1 disposed on a base.
  • 51 a horizontal transmission arm
  • 52 a first horizontal coupling shaft
  • 53 a second horizontal coupling shaft
  • the "peat soil” in the present invention refers to a mineralized biological remains layer, that is, mineral humus, which has a carbonization rate of less than 10% in the upper layer of the coal mine.
  • the organic matter content refers to the content of organic matter detected by the NY/T1976-2010 method.
  • a soil conditioner comprising peat soil, the organic matter content in the peat soil is ⁇ 50 wt%, and the average of the peat soil The particle size is from 0.5 to 15 ⁇ m.
  • the soil conditioner contains the organic matter peat soil having the above content, and the average particle diameter of the peat soil is controlled within a range of 0.5 to 15 ⁇ m, so that the activity of the polymer functional group contained in the organic matter in the peat soil is sufficiently released and exerted. Further, the soil conditioner can rapidly and positively play a role in the agglomerate structure, material migration, moisture retention and the like of the soil. In addition, the soil conditioner can also quickly replenish trace elements, which is beneficial to soil microbial growth and soil organic matter performance. Through a large number of application experiments, it is found that the soil conditioner of the invention has rapid differentiation, complete nutrients, strong chelation, low dosage and high efficacy after entering the soil. There is no secondary pollution during the use process, the resource utilization rate is high, the effect is obvious, and the soil treatment is effective, which is of great significance for the current soil ecological restoration construction in China.
  • the main component of the above soil conditioner is peat soil, which is at least 85% of the total weight of the soil conditioner.
  • the specific content may vary slightly depending on the nature of the soil to be conditioned. For example, 100% peat soil may be included without the need to add alkali to adjust the pH of the soil. Depending on the amount of other regulatory ingredients added, it can be appropriately reduced. Less corresponding content of peat soil.
  • the soil conditioner further includes minerals and the added minerals reach 10% of the total weight of the soil conditioner, the remaining components are peat soil (including the weight of moisture contained in the peat soil).
  • controlling the average particle diameter of the peat soil in the range of 0.5 to 15 ⁇ m enables the activity of the polymer functional group in the organic substance to be exerted, thereby effectively interacting with inorganic ions in the soil, thereby improving the soil. performance.
  • the average particle diameter of the peat soil is 8 to 13 ⁇ m.
  • the average particle diameter of the peat soil in the conditioning agent is 5 ⁇ m or less.
  • the above soil conditioner requires the organic matter content in the peat soil to be 50% by weight or more.
  • the content of organic matter in peat soil is ⁇ 65wt%.
  • the soil conditioner is slightly different due to differences in soil properties or conditioning objectives.
  • the soil conditioner further comprises a base in an amount of from 5 wt% to 10 wt% in the soil conditioner.
  • the soil conditioner further comprises minerals in an amount from 0.1% to 5% by weight in the soil conditioner.
  • the soil conditioner containing the above-mentioned alkali can improve the performance of the acidified soil, and the soil conditioner containing the above mineral can supplement the trace elements required by the soil and improve the nutrient performance of the soil.
  • a method for preparing a soil conditioner comprises: crushing peat soil having an organic matter content of ⁇ 50% by weight to obtain a crushed soil; and classifying the crushed soil; The sieve was ground to obtain peat soil having an average particle diameter of ⁇ 5 ⁇ m.
  • the method comprises the preliminary crushing of the organic matter content of the peat soil to achieve the subsequent grinding, and then performing the fractional grinding and screening to finally obtain the peat soil having an average particle diameter of 0.5-15 ⁇ m.
  • the natural peat soil is sieved by a stepwise grinding and sieving method, so that the activity of the polymer functional group in the organic matter is released or activated, thereby improving the conditioning activity of the prepared soil conditioner on the soil.
  • any peat soil capable of being crushed to a level at which the subsequent grinding equipment can be ground may be used.
  • the peat soil is subjected to rotary cutting in a drum, and a wind of 30 to 85 ° C is blown during the rotary cutting process to crush the peat soil to an average particle diameter of ⁇ 1 mm, preferably in the crushed soil.
  • the moisture content is from 5 wt% to 15 wt%.
  • the specific graded grinding and screening method may be a closed loop grinding system formed by a combination of impact mill, Raymond mill or jet mill with an existing air classifier. Among them, the air classifier is driven by a variable frequency motor, and the particle size of the powder is controlled by adjusting the power and frequency of the variable frequency motor. The step of grading and grinding the crushed soil can determine the number of times of grinding according to actual needs.
  • the step of grading and grinding the sieving comprises: first pulverizing the crushed soil to obtain a soil particle having an average particle diameter of 100 to 500 ⁇ m; and having a particle diameter of 100 to 500 ⁇ m.
  • the soil particles are subjected to a second grinding and sieving to obtain soil particles having an average particle diameter of 30 to 80 ⁇ m; the soil particles having a particle diameter of 30 to 80 ⁇ m are subjected to a third grinding and sieving to obtain an average Peat soil having a particle diameter of 0.5 to 15 ⁇ m; preferably, peat soil having an average particle diameter of 8 to 13 ⁇ m is obtained; or peat soil having an average particle diameter of ⁇ 5 ⁇ m is obtained.
  • the sieve size was gradually reduced by three times of grinding and sieving, thereby obtaining peat soil having high activity.
  • the above three methods of grinding and screening can be realized by using the existing grinding equipment in combination with the screening equipment, or by modifying the existing grinding equipment.
  • the graded abrasive screen is achieved using an improved milling apparatus.
  • the grinding apparatus is a ball mill, and the grinding cylinder 20 of the ball mill is divided into three by a sieve fence 24 (shown in FIGS. 1 and 2) of three different apertures respectively disposed along the vertical direction of the grinding cylinder axis.
  • the diameter of the sieve fence 24 in the direction from the inlet port 10 to the discharge port 30 is 100 to 500 ⁇ m, 30 to 80 ⁇ m, and 5 to 12 ⁇ m, respectively.
  • the powder in the three grinding chambers is separately sieved by the above-mentioned pore diameter, and the diameter of the grinding balls used for grinding in each grinding chamber is not particularly limited as long as the above screening requirements can be satisfied. More preferably, the three grinding chambers are respectively ground using grinding balls having a diameter of 15 to 30 mm, 10 to 15 mm, and 3 to 10 mm. The change in the size and number of the grinding balls causes the powder to be tapered step by step.
  • the aperture of the sieve fence 24 is such that the corresponding relationship between the particle size of the powder and the size and number of the grinding balls reaches a corresponding grinding effect.
  • the inner wall of the grinding cylinder and the grinding ball are made of materials with high impact resistance, corrosion resistance and fast heat conduction to achieve temperature control effect and service life.
  • the above-mentioned grinding cylinder 20 is integrally fixed to one end of the horizontal transmission arm 51 through the first horizontal coupling shaft 52 and the second horizontal coupling shaft 53, and the other end of the horizontal transmission arm 51 is first.
  • the motor 50 drives the left and right swinging vibrations
  • the vertical transmission arm 42 is connected to the grinding cylinder drive shaft 41 of the two grinding cylinders through the vertical coupling shaft 43 and causes the grinding cylinder drive shaft 41 to be opened along with the grinding cylinder drive shaft 41.
  • the slots in the connected connecting rods slide and move up and down along the slots under the driving of the second motor 40 to form a controllable variable track vibrating mill.
  • the horizontal and upper and lower vertical force arms have a vibration frequency of 10 to 60 Hz and an amplitude of 5 to 38 cm, which are regulated by the power of the variable frequency motor.
  • the three grinding chambers are placed with grinding balls of different diameters from different diameters and different sizes of sieves; the material outlet screens are between 1340 and 3000 mesh, and the average diameter of the finished material is less than 10 microns.
  • the above preparation method further comprises the step of adding alkali and/or minerals to the crushed soil before the grading and grinding of the crushed soil, preferably the amount of alkali and/or mineral added is
  • the alkali content in the peat soil is 5 wt% to 10 wt% and/or the mineral content is 0.1 wt% to 5 wt%.
  • a regulator for adjusting the acidified soil can be prepared by adding the above-mentioned alkali, and a mineral supplement can be prepared by adding the above-mentioned mineral.
  • a soil conditioner for use in soil conditioning comprising acidifying slab soil, saline soil, desertified soil, rocky desert soil or heavy metal contaminated soil. Adjustment.
  • the soil conditioning agent of the present invention is also slightly different in conditioning the soil.
  • the conditioning means includes, but is not limited to, embedding the soil conditioner directly into the soil, or preparing the soil conditioner to be sprayed onto the surface of the soil.
  • the natural peat soil (organic matter content: 50wt%) was spin-cut in a drum to obtain a peat soil with a particle size of 900 ⁇ m. During the rotary cutting process, the wind below 65°C was blown to make the moisture content reach 15%.
  • the pipe is conveyed to the silo and uniformly mixed with alkali (NaOH), which is 6% of the total weight of the prepared soil conditioner, and conveyed to the inlet of the three-stage controlled orbital ball mill through a downward pipe.
  • NaOH alkali
  • the three-stage controllable orbital ball mill grinds in a horizontal direction with a vibration frequency of 50 Hz, an amplitude of 30 cm, a vibration frequency of 20 Hz in the vertical direction, and an amplitude of 10 cm, and 300 kg of powder per hour.
  • the diameters of the grinding balls used in the three grinding chambers of the three-stage controlled orbital ball mill are 15mm, 10mm and 3mm respectively, and the diameters of the three-stage screen fence are 100 ⁇ m, 30 ⁇ m and 5 ⁇ m, respectively.
  • the particle diameter of the obtained powder was measured by a dry particle size analyzer to obtain an average particle diameter of 4 ⁇ m.
  • the natural peat soil (organic matter content: 55wt%) was spin-cut in a drum to obtain a peat soil with a particle size of 950 ⁇ m, and the wind below 55°C was blown during the rotary cutting process to make the moisture content reach 5%.
  • the pipeline is transported to the silo, and the alkali (half of CaO and NaOH), which is uniformly added to the total weight of the prepared soil conditioner, is naturally dropped by a downward pipe and sent to the inlet of the three-stage controlled orbital ball mill.
  • the three-stage controllable orbital ball mill grinds in a horizontal direction with a vibration frequency of 40 Hz, an amplitude of 20 cm, a vibration frequency of 40 Hz in the vertical direction, and an amplitude of 20 cm, and 500 kg of powder per hour.
  • the diameter of the grinding balls used in the three grinding chambers of the three-stage controllable orbital ball mill are 30mm, 15mm and 10mm, respectively, and the apertures of the three-stage screen fence are 500 ⁇ m, 80 ⁇ m and 20 ⁇ m, respectively.
  • the particle size of the obtained powder was examined by a dry particle size analyzer method to obtain an average particle diameter of 13 ⁇ m.
  • the natural peat soil (organic matter content: 60wt%) was spin-cut in a drum to obtain a peat soil with a particle size of 890 ⁇ m. During the rotary cutting process, the wind below 85°C was blown to make the moisture content reach 10%.
  • the pipe is conveyed to the silo and uniformly mixed with alkali (KOH), which is 5% of the total weight of the prepared soil conditioner, through a downward pipe, naturally falling, and transported to the inlet of the three-stage controlled orbital ball mill.
  • KOH alkali
  • the three-stage controllable orbital ball mill grinds in a horizontal direction with a vibration frequency of 60 Hz, an amplitude of 38 cm, a vertical vibration frequency of 10 Hz, and an amplitude of 10 cm, and 450 kg of powder per hour.
  • the diameters of the grinding balls used in the three grinding chambers of the three-stage controlled orbital ball mill are 18 mm, 12 mm and 6 mm, respectively, and the diameters of the three-stage sieve fence are 180 ⁇ m, 40 ⁇ m and 6 ⁇ m, respectively.
  • the particle diameter of the obtained powder was measured by a dry particle size analyzer method to obtain an average particle diameter of 5 ⁇ m.
  • the natural peat soil (organic matter content: 88wt%) was spin-cut in a drum to obtain a peat soil with a particle size of 800 ⁇ m. During the rotary cutting process, the wind below 75°C was blown to make the moisture content reach 8%.
  • Pipeline is transported to the silo, uniformly mixed with 5% of the total mass of the prepared soil conditioner (KOH) and 2wt% of selenium (containing 0.5wt% of selenium), through a downward pipe, naturally falling, transported to Three-stage controllable orbital ball mill inlet.
  • the three-stage controllable orbital ball mill grinds in a horizontal direction with a vibration frequency of 30 Hz, an amplitude of 18 cm, a vibration frequency of 20 Hz in the vertical direction, and an amplitude of 15 cm, and 300 kg of powder per hour.
  • the diameters of the grinding balls used in the three grinding chambers of the three-stage controllable orbital ball mill are 15mm, 13mm and 5mm, respectively, and the apertures of the three-stage screen fence are 150 ⁇ m, 60 ⁇ m and 4 ⁇ m, respectively.
  • the impact grinding and the air classifier are used to close the use method, and the particle size of the obtained powder is detected by the power control of the air classifier to obtain an average particle diameter of 9 ⁇ m.
  • the natural mineral peat soil has an organic matter content of 79%.
  • the ordinary crusher is crushed to a particle size of 2 mm, air-dried at 75 ° C, and the water content is 10%, sent to the impact grinding feed port, and classified by a gas classifier.
  • the obtained powder is tested to obtain an average particle diameter of the mineral humus powder of 9 ⁇ m.
  • the impact grinding power is adjusted to 60KW, the power of the air classifier is adjusted to 25KW, and the powder is 900kg per hour.
  • the particle diameter of the obtained powder was measured by a dry particle size analyzer method to obtain an average particle diameter of 9 ⁇ m.
  • NaOH and KOH were added to form a mixture, wherein NaOH was added in an amount of 3% by weight of the mixture, and KOH was added in an amount of 5% by weight of the mixture.
  • the mixture was sieved in two stages and processed to a soil conditioner having an average particle diameter of 5 ⁇ m, a mesh size of 80% or more, and a pH of 8.5.
  • the target of governance is that Meizhou, Guangdong has a PH value of 5.3, an organic matter content of 1.15%, and a heavily acidified plated land of 1,000 square meters.
  • the target of treatment is PH value of 8.6, salt content of 2.4%, and heavy saline-alkali land of 30 mu.
  • the goal of the treatment is to sand 20 acres of sandy land with a thickness of more than 30cm and an organic matter content of 1.3%.
  • the soil conditioner of the embodiment 7 is used, the dosage is 600Kg, the usage is the same as above, the Zhongjie farm of Zhangzhou, 10 mu of celery is planted, the yield is 21823 kg, the lettuce is 10 mu, and the output is 31252 kg. After three months, the soil organic matter content was 2.1%, and the conductivity of the tested soil was 400 ⁇ s/cm.
  • the target of governance is: Yunnan lava basin, the average soil thickness on the rock is less than 8.2cm, and the soil organic matter content is less than 1.5% of the land 10 acres.
  • the above-mentioned soil conditioning agent dosage is 600Kg, the usage is the same as above, and 5 acres of radish and pumpkin are planted.
  • the yield of radish is 6,350 kg, and the yield of pumpkin is 12,665 kg.
  • the soil organic matter content was 15%, the average soil thickness was 11 cm, and the conductivity of the test soil was 366 ⁇ s/cm.
  • KOH a mineral-forming mixture was added to 70% of the peat soil containing organic matter, wherein KOH was added in an amount of 5% by weight based on the total weight of the mixture, and the mineral was added in an amount of 2.0% by weight based on the total weight of the mixture.
  • the mixture was crushed to 1 mm or less and then processed to a soil conditioner having an average particle size of 15 ⁇ m and a pH of 7.2 by three-stage grinding.
  • the goal of governance is: Yunnan lava basin, the average soil thickness on the rock is less than 8.2cm, and the soil organic matter content is less than 1.8% of the land 10 acres.
  • the above-mentioned soil conditioning agent dosage is 600Kg, the usage is the same as above, and 5 acres of radish and pumpkin are planted.
  • the yield of radish is 6380 kg, and the yield of pumpkin is 12668 kg.
  • the soil organic matter content was 2.2%, the average soil thickness was 13 cm, and the conductivity of the test soil was 350 ⁇ s/cm.
  • KOH a mineral-forming mixture was added to 70% of the peat soil containing organic matter, wherein KOH was added in an amount of 5% by weight based on the total weight of the mixture, and the mineral was added in an amount of 2.0% by weight based on the total weight of the mixture.
  • the mixture was crushed to 1 mm or less and then processed to a soil conditioner having an average particle diameter of 0.5 ⁇ m and a pH of 7.0 using a three-stage grinding sieve.
  • the target of governance is: Yunnan lava basin, the average soil thickness on the rock is less than 8.2cm, and the soil organic matter content is less than 1.9% of the land 10 acres.
  • the above-mentioned soil conditioning agent dosage is 600Kg, the usage is the same as above, and 5 acres of radish and pumpkin are planted.
  • the yield of radish is 6450 kg, and the yield of pumpkin is 12692 kg.
  • the soil organic matter content was 2.2%, the average soil thickness was 15 cm, and the conductivity of the test soil was 320 ⁇ s/cm.
  • the target of governance is that Meizhou, Guangdong has a PH value of 5.3, an organic matter content of 1.15%, and a heavily acidified plated land of 1,000 square meters.
  • a soil repairing agent having an average particle diameter of 74 ⁇ m (200 mesh) and a pH of 6.3 was processed in 65% of peat soil containing organic matter.
  • the target of treatment is PH value of 8.6, salt content of 2.4%, and heavy saline-alkali land of 30 mu.
  • Example 6 the peat soil in Comparative Example 1 was not ground, so the particles were large, and the soil repairing agent formed by mixing with the alkali had a high pH value, and thus was severely acidified.
  • the pH adjustment effect was the same as that of Example 6, but in the comparative example 1, the organic substance existing as a polymer hardly reacted with inorganic ions in the soil, and thus it was difficult to improve the conductivity of the acidified.
  • the peat soil is subjected to low-temperature drying pretreatment and processed to a micron order or finer by a multi-stage grinding and screening method. It has extremely strong activity, maintains the activity of various polymer functional groups in its original organic matter, and can quickly and positively produce positive and beneficial effects on the agglomerate structure, material migration and moisture retention of the soil, and can quickly supplement trace elements. It is beneficial to the growth of soil microbes and the effectiveness of soil organic matter. Moreover, through a large number of application experiments, it was found that the ultra-fine peat mixture, after entering the soil, differentiated quickly, camp Complete nutrients, strong chelation, low dosage and high efficacy. There is no secondary pollution during the use process, the resource utilization rate is high, the effect is obvious, and the soil treatment is effective, which is of great significance for the current soil ecological restoration construction in China.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Pest Control & Pesticides (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Cultivation Of Plants (AREA)

Abstract

The present invention provides a soil conditioner, a preparation method therefor, and an application thereof. The soil conditioner comprises peat soil, the content of organic matter in the peat soil being ≥ 50 wt% and the average particle size of the peat soil being 0.5 to 15 μm. The use of micron scale or finer particle size peat soil releases and unleashes the activity of the various macromolecular functional groups in the organic matter originally in the peat soil, thereby rapidly producing beneficial effects to the granular structure, substance migration and moisture retention of the soil, and also allows rapid replenishment of trace elements, favoring growth of soil microorganisms and the utility of soil organic matter. Further, the soil conditioner of the present invention breaks down quickly upon entry into the soil and offers a complete set of nutrients, strong chelating ability, low dosage and potent efficacy. With no secondary pollution generated during use, a high resource utilization rate, significant effect, and rapid results for soil remediation, the invention has very important implications for the soil ecology restoration efforts currently being undertaken in China.

Description

土壤调理剂、其制备方法及应用Soil conditioner, preparation method and application thereof 技术领域Technical field
本发明涉及土壤改良技术领域，具体而言，涉及一种土壤调理剂、其制备方法及应用。The invention relates to the technical field of soil improvement, in particular to a soil conditioner, a preparation method thereof and application thereof.
背景技术Background technique
泥炭土为植物体腐化物，碳化率低，主要成分是有机物，存在于自然界中已有千年以上，已经形成相对稳定的内部结构。Peat soil is a plant body rot, has a low carbonization rate, and its main component is organic matter. It has existed in nature for more than a thousand years and has formed a relatively stable internal structure.
目前，将褐煤、泥炭土、草炭等用于土壤改良的主要现有技术是将其中的腐植酸进行化学提取、配制腐殖酸盐和腐植酸复合肥。这些方法普遍存在资源利用率低，生产过程有污染。而且现有加工技术、方法和设备，一般只能将褐煤加工到200目的颗粒，用于土壤改良，使用量大，效果有限，产品附加值低，市场应用面窄。At present, the main prior art for using lignite, peat soil, peat, etc. for soil improvement is to chemically extract humic acid and prepare humate and humic acid compound fertilizer. These methods generally have low resource utilization and pollution in the production process. Moreover, the existing processing technology, methods and equipment generally can only process lignite into 200-mesh particles for soil improvement, with large amount of use, limited effect, low added value of products, and narrow market application.
发明内容Summary of the invention
本发明的主要目的在于提供一种土壤调理剂、其制备方法及应用，以解决现有技术中的土壤调理剂对土壤的改良效果有限的问题。The main object of the present invention is to provide a soil conditioner, a preparation method thereof and an application thereof, to solve the problem that the soil conditioner has limited effect on soil improvement in the prior art.
本发明的泥炭土微粉土壤调理剂的特征，包含以下组成部分：The peat soil micronized soil conditioner of the present invention is characterized by the following components:
1)含有机质50％以上的天然泥炭土，粒径5微米以下的微粉，应用于土壤活性改良。1) Containing 50% or more of natural peat soil, fine powder with a particle size of 5 microns or less, used for soil activity improvement.
2)含有机质50％以上的天然泥炭土与固体碱混合加工到粒径5微米以下的微粉，应用于土壤酸碱度调节。2) The natural peat soil containing more than 50% of the organic matter is mixed with the solid alkali to prepare the fine powder with the particle size below 5 microns, and is applied to the adjustment of soil pH.
3)含有机质50％以上的天然泥炭土与矿物质混合经加工到粒径5微米以下的微粉，应用于土壤营养素补充。3) The natural peat soil containing more than 50% of the organic matter is mixed with minerals and processed into fine powder with a particle size of 5 microns or less, which is applied to soil nutrient supplementation.
4)含有机质50％以上的天然泥炭土水份含量为5～15％。4) The moisture content of natural peat soil containing more than 50% of the organic matter is 5-15%.
5)泥炭土微粉土壤调理剂有机质含量大于55％。5) The organic matter content of the peat soil micro-powder soil conditioner is greater than 55%.
根据本发明的另一方面，还提供了一种土壤调理剂，该土壤调理剂包括泥炭土，泥炭土中有机质的含量≥50wt％，泥炭土的平均粒径为0.5～15μm。According to another aspect of the present invention, there is also provided a soil conditioner comprising peat soil, the organic matter content in the peat soil is ≥ 50 wt%, and the average particle diameter of the peat soil is 0.5-15 μm.
进一步地，泥炭土的平均粒径为8～13μm或者泥炭土的平均粒径≤5μm。Further, the average particle diameter of the peat soil is 8 to 13 μm or the average particle diameter of the peat soil is ≤ 5 μm.
进一步地，泥炭土中有机质的含量≥55wt％，优选泥炭土中有机质的含量≥60wt％；更优选泥炭土中有机质的含量≥65wt％。Further, the content of the organic matter in the peat soil is ≥ 55 wt%, preferably the content of the organic matter in the peat soil is ≥ 60 wt%; more preferably, the content of the organic matter in the peat soil is ≥ 65 wt%.
进一步地，土壤调理剂还包括碱和/或矿物质，优选碱在土壤调理剂中含量为5wt％～10wt％，优选矿物质在土壤调理剂中的含量为0.1wt％～5wt％。 Further, the soil conditioner further comprises a base and/or a mineral, preferably the base is present in the soil conditioner at a level of from 5 wt% to 10 wt%, preferably the mineral content in the soil conditioner is from 0.1 wt% to 5 wt%.
根据本发明的第三方面，还提供了一种土壤调理剂的制备方法，该制备方法包括：将有机质含量≥50wt％的泥炭土进行破碎，得到破碎土；对破碎土进行分级研磨筛分，得到平均粒径为0.5～15μm的泥炭土。According to a third aspect of the present invention, a method for preparing a soil conditioner is further provided, which comprises: crushing peat soil having an organic matter content of ≥50% by weight to obtain a crushed soil; and classifying the crushed soil by grading and grinding, Peat soil having an average particle diameter of 0.5 to 15 μm was obtained.
进一步地，破碎土的平均粒径≤1mm，优选破碎土中水分含量为5wt％～15wt％。Further, the average particle diameter of the crushed soil is ≤1 mm, and preferably the moisture content in the crushed soil is 5 wt% to 15 wt%.
进一步地，对破碎土进行分级研磨筛分的步骤包括：对破碎土进行第一次研磨筛分，得到平均粒径为100～500μm的土粒；对粒径为100～500μm的土粒进行第二次研磨筛分，得到平均粒径为30～80μm的土粒；对粒径为30～80μm的土粒进行第三次研磨筛分，得到平均粒径为0.5～15μm的泥炭土；优选地，得到平均粒径为8～13μm的泥炭土；或者得到平均粒径≤5μm的泥炭土。Further, the step of grading and grinding the crushed soil comprises: first grinding and sieving the crushed soil to obtain soil particles having an average particle diameter of 100 to 500 μm; and performing the first grain size of 100 to 500 μm. Secondary grinding and sieving to obtain soil particles having an average particle diameter of 30 to 80 μm; and grinding the soil particles having a particle diameter of 30 to 80 μm for the third time to obtain peat soil having an average particle diameter of 0.5 to 15 μm; preferably To obtain peat soil having an average particle diameter of 8 to 13 μm; or to obtain peat soil having an average particle diameter of ≤ 5 μm.
进一步地，在对破碎土进行分级研磨筛分之前，制备方法还包括向破碎土中添加碱和/或矿物质的步骤，优选碱的添加量以泥炭土中碱含量为5wt％～10wt％，矿物质含量为0.1wt％～5wt％为准。Further, before the grading and grinding of the crushed soil, the preparation method further comprises the step of adding alkali and/or minerals to the crushed soil, preferably, the alkali is added in an amount of 5 wt% to 10 wt% of the alkali content in the peat soil. The mineral content is from 0.1% by weight to 5% by weight.
根据本发明的第三方面，还提供了上述任一种土壤调节剂在土壤调节中的应用，该应用包括对酸化板结土壤、盐碱土壤、沙化土壤、石漠化土壤或重金属污染土壤的调节。According to a third aspect of the present invention, there is also provided the use of any of the above soil conditioners for soil conditioning, the application comprising the adjustment of acidified slab soil, saline soil, desertified soil, rocky desert soil or heavy metal contaminated soil. .
进一步地，应用包括将土壤调节剂直接埋入土壤中，或者将土壤调节剂制备成溶液喷洒在土壤表面。Further, the application includes embedding the soil conditioner directly into the soil, or preparing the soil conditioner to be sprayed onto the surface of the soil.
本发明技术的基本特征是：The basic features of the present technology are:
一、自然界中天然的泥炭土经旋切，破碎到粒径1mm以下，再经多级可控变轨球磨机加工，使用孔径5μm滤筛，出粉平均粒径大于3000目，充分发挥有机高分子官能团的功效；1. The natural peat soil in nature is rotated and cut to a particle size of 1mm or less, and then processed by a multi-stage controlled orbital ball mill. The average particle size of the powder is more than 3000 mesh using a pore size of 5μm. The function of the functional group;
二、依照土壤存在的酸化板结，加入固体碱混合后研磨成混合物微粉，可调节土壤酸碱度和疏松度；Second, according to the acidification of the soil, the addition of solid alkali mixed and ground into a mixture of fine powder, can adjust the soil pH and porosity;
三、被破坏的土壤如存在营养元素的缺失，加入相应的矿物质混合后研磨成混合物微粉能快速均匀分布于土壤中；Third, the damaged soil, such as the absence of nutrients, added to the corresponding minerals mixed and ground into a mixture of micro-powder can be quickly and evenly distributed in the soil;
四、泥炭土微粉可直接掺和到土壤中，也可溶于水浇灌，操作简单；4. The peat soil micropowder can be directly mixed into the soil, and can also be dissolved in water for watering, and the operation is simple;
五、泥炭土微粉土壤调理剂有机质含量大于55％。5. Peat soil micro-powder soil conditioner organic matter content is greater than 55%.
应用本发明的技术方案，通过利用微米级或更细粒径的泥炭土，使得泥炭土中原有有机质中的多种高分子官能团活性得到释放和发挥，因而对土壤的团粒结构、物质运移、保湿性等都能快速产生积极有益的作用。此外，还能实现微量元素快速补充，有利于土壤微生物生长和土壤有机质的效能发挥。而且，通过大量应用实验发现，本发明的土壤调理剂进入土壤后分化快，营养素齐全，螯合力强，用量少，功效高。使用过程无任何二次污染，资源利用率高，效果明显，土壤治理见效快，对于我国目前土壤生态修复建设具有十分重要的意义。By applying the technical scheme of the present invention, by using the peat soil of the micron order or finer particle size, the activity of various polymer functional groups in the original organic matter in the peat soil is released and exerted, thereby the agglomerate structure and material migration of the soil, Moisture retention and the like can quickly produce positive and beneficial effects. In addition, it can also achieve rapid replenishment of trace elements, which is beneficial to soil microbial growth and soil organic matter performance. Moreover, through a large number of application experiments, it is found that the soil conditioning agent of the invention has rapid differentiation, complete nutrients, strong chelation, low dosage and high efficacy after entering the soil. There is no secondary pollution during the use process, the resource utilization rate is high, the effect is obvious, and the soil treatment is effective, which is of great significance for the current soil ecological restoration construction in China.
附图说明 DRAWINGS
构成本申请的一部分的说明书附图用来提供对本发明的进一步理解，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The accompanying drawings, which are incorporated in the claims of the claims In the drawing:
图1示出了根据本发明的一种优选实施例中的球磨机的磨筒的结构示意图；Figure 1 is a schematic view showing the structure of a grinding cylinder of a ball mill in accordance with a preferred embodiment of the present invention;
图2示出了图1的磨筒中不同磨仓之间设置的滤筛栅栏的结构示意图；以及Figure 2 is a schematic view showing the structure of a screen fence provided between different grinding chambers in the grinding cylinder of Figure 1;
图3示出了图1的球磨机设置在基座上的一个侧视图。Figure 3 shows a side view of the ball mill of Figure 1 disposed on a base.
其中，上述附图包括以下附图标记：Wherein, the above figures include the following reference numerals:
10、入料口；30、出料口；20、磨筒；21、第一磨仓、22、第二磨仓、23、第三磨仓；24、滤筛栅栏；10. Feeding port; 30, discharge port; 20, grinding cylinder; 21, first grinding bin, 22, second grinding bin, 23, third grinding bin; 24, sieve fence;
41、磨筒驱动轴；42、竖直传动臂；43、竖直连轴杆；41, grinding cylinder drive shaft; 42, vertical transmission arm; 43, vertical coupling shaft;
51、水平传动臂；52、第一水平连轴杆；53、第二水平连轴杆；51, a horizontal transmission arm; 52, a first horizontal coupling shaft; 53, a second horizontal coupling shaft;
50、第一电机；40、第二电机；60、基座。50, the first motor; 40, the second motor; 60, the base.
具体实施方式detailed description
需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。下面将结合实施例来详细说明本发明。It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the embodiments.
需要说明的是，本发明中的“泥炭土”是指存在于煤矿上层的碳化率低于10％的矿化生物遗骸层，即矿物腐殖质。其中，有机质含量是指采用NY/T1976-2010方法所检测到的有机质的含量。It should be noted that the "peat soil" in the present invention refers to a mineralized biological remains layer, that is, mineral humus, which has a carbonization rate of less than 10% in the upper layer of the coal mine. Among them, the organic matter content refers to the content of organic matter detected by the NY/T1976-2010 method.
如背景技术部分所提到的，现有技术中的土壤修复剂存在修复效果有限，且用量大存在容易造成二次污染的问题。为了改善现有技术的上述状况，在本发明一种典型的实施方式中，提供了一种土壤调理剂，该土壤调理剂包括泥炭土，泥炭土中有机质的含量≥50wt％，泥炭土的平均粒径为0.5～15μm。As mentioned in the background section, the soil remediation agent of the prior art has a limited repairing effect, and the use of the amount of the soil is likely to cause secondary pollution. In order to improve the above-mentioned situation of the prior art, in an exemplary embodiment of the present invention, a soil conditioner is provided, the soil conditioner comprising peat soil, the organic matter content in the peat soil is ≥50 wt%, and the average of the peat soil The particle size is from 0.5 to 15 μm.
上述土壤调理剂，通过含有上述含量的有机质的泥炭土，并将泥炭土的平均粒径控制0.5～15μm范围内，使得泥炭土中的有机质所含有的高分子官能团的活性得以充分释放和发挥，进而使得该土壤调理剂在对土壤的团粒结构、物质运移、保湿性等方面都能快速产生积极的作用。此外，该土壤调理剂还能实现微量元素快速补充，有利于土壤微生物生长和土壤有机质的效能发挥。通过大量应用实验发现，本发明的土壤调理剂进入土壤后分化快，营养素齐全，螯合力强，用量少，功效高。使用过程无任何二次污染，资源利用率高，效果明显，土壤治理见效快，对于我国目前土壤生态修复建设具有十分重要的意义。The soil conditioner contains the organic matter peat soil having the above content, and the average particle diameter of the peat soil is controlled within a range of 0.5 to 15 μm, so that the activity of the polymer functional group contained in the organic matter in the peat soil is sufficiently released and exerted. Further, the soil conditioner can rapidly and positively play a role in the agglomerate structure, material migration, moisture retention and the like of the soil. In addition, the soil conditioner can also quickly replenish trace elements, which is beneficial to soil microbial growth and soil organic matter performance. Through a large number of application experiments, it is found that the soil conditioner of the invention has rapid differentiation, complete nutrients, strong chelation, low dosage and high efficacy after entering the soil. There is no secondary pollution during the use process, the resource utilization rate is high, the effect is obvious, and the soil treatment is effective, which is of great significance for the current soil ecological restoration construction in China.
对上述土壤调理剂中的主要成分是泥炭土，其含量至少为土壤调理剂总重量的85％。具体含量可以根据待调理的土壤的性质不同而含量略有差异。比如，在不需要加碱调节土壤pH值的情况下，可以包括100％的泥炭土。根据所加入的其他调节成分的含量的多少可以适当减 少相应含量的泥炭土。比如，当土壤调节剂还包括矿物质，且加入的矿物质的含量达到土壤调节剂总重量的10％时，其余成分均为泥炭土(包括泥炭土中所含的水分的重量)。The main component of the above soil conditioner is peat soil, which is at least 85% of the total weight of the soil conditioner. The specific content may vary slightly depending on the nature of the soil to be conditioned. For example, 100% peat soil may be included without the need to add alkali to adjust the pH of the soil. Depending on the amount of other regulatory ingredients added, it can be appropriately reduced. Less corresponding content of peat soil. For example, when the soil conditioner further includes minerals and the added minerals reach 10% of the total weight of the soil conditioner, the remaining components are peat soil (including the weight of moisture contained in the peat soil).
上述土壤调理剂中，将泥炭土的平均粒径控制在0.5～15μm的范围内能够使得有机质中的高分子官能团的活性得以发挥，从而能够有效地与土壤中的无机离子发生作用，从而改良土壤性能。从泥炭土的上述粒径的控制难度、生产成本及活性高低等方面综合考虑，优选泥炭土的平均粒径为8～13μm。从对土壤调理性能的活性更高角度考虑，优选该调理剂中泥炭土的平均粒径在5μm以下。In the above soil conditioner, controlling the average particle diameter of the peat soil in the range of 0.5 to 15 μm enables the activity of the polymer functional group in the organic substance to be exerted, thereby effectively interacting with inorganic ions in the soil, thereby improving the soil. performance. From the viewpoints of difficulty in controlling the above-mentioned particle diameter of the peat soil, production cost, and activity level, it is preferable that the average particle diameter of the peat soil is 8 to 13 μm. From the viewpoint of higher activity on soil conditioning properties, it is preferred that the average particle diameter of the peat soil in the conditioning agent is 5 μm or less.
上述土壤调理剂对泥炭土中有机质的含量要求在50wt％以上即可。泥炭土中有机质含量越高，调理剂对土壤的调理性能也相应越快。因而，从调理效果的时效性角度考虑，在本发明一优选的实施例中，上述土壤调理剂的泥炭土中有机质的含量≥55wt％，更优选泥炭土中有机质的含量≥60wt％；进一步优选泥炭土中有机质的含量≥65wt％。The above soil conditioner requires the organic matter content in the peat soil to be 50% by weight or more. The higher the organic matter content in peat soil, the faster the conditioning performance of the conditioning agent on the soil. Therefore, in a preferred embodiment of the present invention, the content of the organic matter in the peat soil of the soil conditioner is ≥55 wt%, more preferably the content of the organic matter in the peat soil is ≥60 wt%; further preferably, from the viewpoint of the aging effect of the conditioning effect The content of organic matter in peat soil is ≥65wt%.
上述优选实施例中，土壤调理剂因土壤性质或调理目的的不同而略有差异。在一优选实施例中，土壤调理剂还包括碱，碱在土壤调理剂中含量为5wt％～10wt％。在另一优选实施例中，土壤调理剂还包括矿物质，矿物质在土壤调理剂中的含量为0.1wt％～5wt％。含有上述含量碱的土壤调理剂能够改善酸化土壤的性能，而含有上述含量矿物质的土壤调理剂能够补充土壤所需的微量元素，提高土壤的营养性能。In the preferred embodiment described above, the soil conditioner is slightly different due to differences in soil properties or conditioning objectives. In a preferred embodiment, the soil conditioner further comprises a base in an amount of from 5 wt% to 10 wt% in the soil conditioner. In another preferred embodiment, the soil conditioner further comprises minerals in an amount from 0.1% to 5% by weight in the soil conditioner. The soil conditioner containing the above-mentioned alkali can improve the performance of the acidified soil, and the soil conditioner containing the above mineral can supplement the trace elements required by the soil and improve the nutrient performance of the soil.
在本发明另一种典型的实施方式中，还提供了一种土壤调理剂的制备方法，该制备方法包括：将有机质含量≥50wt％的泥炭土进行破碎，得到破碎土；对破碎土进行分级研磨筛分，得到平均粒径≤5μm的泥炭土。该方法通过对上述有机质含量的泥炭土进行初步破碎，以达到后续能够研磨的大小，然后进行分级研磨筛分，最终得到平均粒径为0.5～15μm的泥炭土。通过分级研磨筛分的方法对天然泥炭土进行逐级研磨筛分，使得有机质中的高分子官能团的活性被释放或激活，从而提高了所制备的土壤调理剂对土壤的调理活性。In another exemplary embodiment of the present invention, a method for preparing a soil conditioner is further provided, which comprises: crushing peat soil having an organic matter content of ≥50% by weight to obtain a crushed soil; and classifying the crushed soil; The sieve was ground to obtain peat soil having an average particle diameter of ≤ 5 μm. The method comprises the preliminary crushing of the organic matter content of the peat soil to achieve the subsequent grinding, and then performing the fractional grinding and screening to finally obtain the peat soil having an average particle diameter of 0.5-15 μm. The natural peat soil is sieved by a stepwise grinding and sieving method, so that the activity of the polymer functional group in the organic matter is released or activated, thereby improving the conditioning activity of the prepared soil conditioner on the soil.
上述将有机质含量≥50wt％的泥炭土进行破碎得到破碎土的步骤中，任何能够将泥炭土破碎至后续的研磨设备能够研磨的级别即可。在本发明一种优选的实施例中，将泥炭土在圆桶中经过旋切，旋切过程中吹入30～85℃的风，将泥炭土破碎至平均粒径≤1mm，优选破碎土中水分含量为5wt％～15wt％。In the above step of crushing the peat soil having an organic matter content of ≥ 50% by weight to obtain a crushed soil, any peat soil capable of being crushed to a level at which the subsequent grinding equipment can be ground may be used. In a preferred embodiment of the present invention, the peat soil is subjected to rotary cutting in a drum, and a wind of 30 to 85 ° C is blown during the rotary cutting process to crush the peat soil to an average particle diameter of ≤1 mm, preferably in the crushed soil. The moisture content is from 5 wt% to 15 wt%.
上述分级研磨的具体实现方式有多种，可以采用现有的研磨设备对泥炭土进行每次研磨后，再利用现有的筛分设备对合适粒径的研磨组分进行筛分，然后进行下次研磨和筛分，直至所得泥炭土的粒径满足上述需求即可。具体的分级研磨筛分方法可以是冲击磨、雷蒙磨或气流磨与现有的气流分级机组合形成的闭路循环研磨***。其中，气流分级机采用变频电机驱动，通过调节变频电机的功率与频率控制出粉粒径。对破碎土进行分级研磨筛分的步骤可以根据实际需要确定研磨的次数。There are various specific implementations of the above-mentioned classification grinding. After the grinding of the peat soil by the existing grinding equipment, the grinding components of the appropriate particle size can be sieved by using the existing screening equipment, and then the lower part is sieved. The grinding and sieving are carried out until the particle size of the obtained peat soil satisfies the above requirements. The specific graded grinding and screening method may be a closed loop grinding system formed by a combination of impact mill, Raymond mill or jet mill with an existing air classifier. Among them, the air classifier is driven by a variable frequency motor, and the particle size of the powder is controlled by adjusting the power and frequency of the variable frequency motor. The step of grading and grinding the crushed soil can determine the number of times of grinding according to actual needs.
在本发明一种优选的实施例中，分级研磨筛分的步骤包括：对破碎土进行第一次研磨筛分，得到平均粒径为100～500μm的土粒；对粒径为100～500μm的土粒进行第二次研磨筛分，得到平均粒径为30～80μm的土粒；对粒径为30～80μm的土粒进行第三次研磨筛分，得到平均 粒径为0.5～15μm的泥炭土；优选地，得到平均粒径为8～13μm的泥炭土；或者得到平均粒径≤5μm的泥炭土。通过三次研磨筛分，逐级减小筛分粒度，进而得到具有高活性的泥炭土。In a preferred embodiment of the present invention, the step of grading and grinding the sieving comprises: first pulverizing the crushed soil to obtain a soil particle having an average particle diameter of 100 to 500 μm; and having a particle diameter of 100 to 500 μm. The soil particles are subjected to a second grinding and sieving to obtain soil particles having an average particle diameter of 30 to 80 μm; the soil particles having a particle diameter of 30 to 80 μm are subjected to a third grinding and sieving to obtain an average Peat soil having a particle diameter of 0.5 to 15 μm; preferably, peat soil having an average particle diameter of 8 to 13 μm is obtained; or peat soil having an average particle diameter of ≤ 5 μm is obtained. The sieve size was gradually reduced by three times of grinding and sieving, thereby obtaining peat soil having high activity.
上述分三次研磨筛分的方法可以采用现有研磨设备与筛分设备配合使用实现，也可以通过对现有的研磨设备进行改造来实现。在本发明一种优选的实施例中，上述分级研磨筛分采用一种改进的研磨设备来实现。如图1所示，该研磨设备为球磨机，该球磨机的磨筒20由沿磨筒轴垂直方向分别设置的三个不同孔径的滤筛栅栏24(如图1和图2所示)分割成三个磨仓，第一磨仓21、第二磨仓22以及第三磨仓23。从入料口10至出料口30方向上，滤筛栅栏24的孔径分别为100～500μm、30～80μm以及5～12μm。采用上述孔径分别对三个磨仓中的粉末进行筛分，而对各磨仓中研磨所使用的磨球的直径并不特别限定，只要能够满足上述筛分要求即可。更优选地，三个磨仓分别采用直径为15～30mm、10～15mm以及3～10mm的磨球进行研磨。磨球直径的大小和个数的变化使粉末逐级变细。滤筛栅栏24的孔径使得粉末的粒径与磨球的大小和数量的对应关系达到对应的研磨效果。磨筒内壁和磨球选用耐冲击、耐腐蚀、导热快的材料能达到温控效果和使用寿命。The above three methods of grinding and screening can be realized by using the existing grinding equipment in combination with the screening equipment, or by modifying the existing grinding equipment. In a preferred embodiment of the invention, the graded abrasive screen is achieved using an improved milling apparatus. As shown in FIG. 1, the grinding apparatus is a ball mill, and the grinding cylinder 20 of the ball mill is divided into three by a sieve fence 24 (shown in FIGS. 1 and 2) of three different apertures respectively disposed along the vertical direction of the grinding cylinder axis. A grinding chamber, a first grinding chamber 21, a second grinding chamber 22, and a third grinding chamber 23. The diameter of the sieve fence 24 in the direction from the inlet port 10 to the discharge port 30 is 100 to 500 μm, 30 to 80 μm, and 5 to 12 μm, respectively. The powder in the three grinding chambers is separately sieved by the above-mentioned pore diameter, and the diameter of the grinding balls used for grinding in each grinding chamber is not particularly limited as long as the above screening requirements can be satisfied. More preferably, the three grinding chambers are respectively ground using grinding balls having a diameter of 15 to 30 mm, 10 to 15 mm, and 3 to 10 mm. The change in the size and number of the grinding balls causes the powder to be tapered step by step. The aperture of the sieve fence 24 is such that the corresponding relationship between the particle size of the powder and the size and number of the grinding balls reaches a corresponding grinding effect. The inner wall of the grinding cylinder and the grinding ball are made of materials with high impact resistance, corrosion resistance and fast heat conduction to achieve temperature control effect and service life.
更优选地，如图3所示，上述磨筒20整体通过第一水平连轴杆52和第二水平连轴杆53固定在水平传动臂51的一端，水平传动臂51的另一端由第一电机50带动左右摇摆振动，竖直传动臂42通过竖直连轴杆43与两个磨筒的磨筒驱动轴41相连接，并使得磨筒驱动轴41沿开设在与该磨筒驱动轴41相连接的连接杆内的槽进行滑动，并在第二电机40的驱动下沿槽进行上下运动，构成可控可变轨迹振动磨。More preferably, as shown in FIG. 3, the above-mentioned grinding cylinder 20 is integrally fixed to one end of the horizontal transmission arm 51 through the first horizontal coupling shaft 52 and the second horizontal coupling shaft 53, and the other end of the horizontal transmission arm 51 is first. The motor 50 drives the left and right swinging vibrations, and the vertical transmission arm 42 is connected to the grinding cylinder drive shaft 41 of the two grinding cylinders through the vertical coupling shaft 43 and causes the grinding cylinder drive shaft 41 to be opened along with the grinding cylinder drive shaft 41. The slots in the connected connecting rods slide and move up and down along the slots under the driving of the second motor 40 to form a controllable variable track vibrating mill.
两个相同的可控变轨振动磨，利用一个中心点连接水平方向的力臂(第一水平连轴杆52和第二水平连轴杆53)，使两个磨筒水平方向对称运行，平衡放置于基座60上。Two identical controllable orbital vibration mills, using a central point to connect the horizontal force arm (the first horizontal coupling rod 52 and the second horizontal coupling shaft 53), so that the two grinding cylinders run horizontally symmetrically, balancing Placed on the base 60.
水平和上下两个垂直方向的力臂的振动频率为10～60Hz，振幅为5～38cm，由变频电机功率调节。The horizontal and upper and lower vertical force arms have a vibration frequency of 10 to 60 Hz and an amplitude of 5 to 38 cm, which are regulated by the power of the variable frequency motor.
从物料入口到出口，三个磨舱放置由大到小不同直径的磨球和不同目数的滤筛；物料出口滤筛在1340～3000目，物料研磨成品平均粒径小于10微米。From the material inlet to the outlet, the three grinding chambers are placed with grinding balls of different diameters from different diameters and different sizes of sieves; the material outlet screens are between 1340 and 3000 mesh, and the average diameter of the finished material is less than 10 microns.
上述制备方法中，在对破碎土进行分级研磨筛分之前，根据所欲制备的土壤调节剂的作用的细微差异，其制备方法上也存在些许区别。在本发明一优选实施例中，上述制备方法在对破碎土进行分级研磨筛分之前，还包括向破碎土中添加碱和/或矿物质的步骤，优选碱和/或矿物质的添加量以泥炭土中碱含量为5wt％～10wt％和/或矿物质含量为0.1wt％～5wt％为准。添加了上述含量的碱可制备得到调节酸化土壤的调节剂，而添加上述含量的矿物质可制备补充土壤营养成分的调节剂。同上添加上述两种成分可以制备得到既能调节酸化土壤，又补充土壤营养成分的土壤调节剂。In the above preparation method, before the classification and grinding of the crushed soil, there are some differences in the preparation method depending on the subtle difference in the action of the soil conditioner to be prepared. In a preferred embodiment of the present invention, the above preparation method further comprises the step of adding alkali and/or minerals to the crushed soil before the grading and grinding of the crushed soil, preferably the amount of alkali and/or mineral added is The alkali content in the peat soil is 5 wt% to 10 wt% and/or the mineral content is 0.1 wt% to 5 wt%. A regulator for adjusting the acidified soil can be prepared by adding the above-mentioned alkali, and a mineral supplement can be prepared by adding the above-mentioned mineral. By adding the above two components as above, a soil conditioner which can adjust the acidified soil and supplement the soil nutrients can be prepared.
在本发明一种典型的实施方式中，还提供了一种土壤调节剂在土壤调节中的应用，该应用包括对酸化板结土壤、盐碱土壤、沙化土壤、石漠化土壤或重金属污染土壤的调节。 In an exemplary embodiment of the present invention, there is also provided a soil conditioner for use in soil conditioning, the application comprising acidifying slab soil, saline soil, desertified soil, rocky desert soil or heavy metal contaminated soil. Adjustment.
根据土壤性质的不同，利用本发明的土壤调理剂对土壤进行调理的方式也略有不同。在本发明中，其调理方式包括但不仅限于将土壤调节剂直接埋入土壤中，或者将土壤调节剂制备成溶液喷洒在土壤表面。Depending on the nature of the soil, the soil conditioning agent of the present invention is also slightly different in conditioning the soil. In the present invention, the conditioning means includes, but is not limited to, embedding the soil conditioner directly into the soil, or preparing the soil conditioner to be sprayed onto the surface of the soil.
下面将结合具体的实施例来进一步说明本发明的有益效果。Advantageous effects of the present invention will be further described below in conjunction with specific embodiments.
实施例1Example 1
将天然泥炭土(有机质含量为50wt％)在圆桶中经过旋切得到粒径为900μm的泥碳土，旋切过程中吹入65℃以下的风，使水份含量达到15％，经过常温管道输送到料仓，均匀掺和为所制备土壤调理剂总重量6％的碱(NaOH)，通过一个向下的管道输送到三级可控变轨球磨机入口。三级可控变轨球磨机在水平方向的振动频率为50Hz、振幅为30cm，垂直方向的振动频率为20Hz、振幅为10cm的振动条件下进行研磨，每小时出粉300kg。The natural peat soil (organic matter content: 50wt%) was spin-cut in a drum to obtain a peat soil with a particle size of 900μm. During the rotary cutting process, the wind below 65°C was blown to make the moisture content reach 15%. The pipe is conveyed to the silo and uniformly mixed with alkali (NaOH), which is 6% of the total weight of the prepared soil conditioner, and conveyed to the inlet of the three-stage controlled orbital ball mill through a downward pipe. The three-stage controllable orbital ball mill grinds in a horizontal direction with a vibration frequency of 50 Hz, an amplitude of 30 cm, a vibration frequency of 20 Hz in the vertical direction, and an amplitude of 10 cm, and 300 kg of powder per hour.
其中，三级可控变轨球磨机中的三个磨仓使用的磨球的直径分别为15mm、10mm和3mm，三级滤筛栅栏的孔径分别为100μm、30μm和5μm。Among them, the diameters of the grinding balls used in the three grinding chambers of the three-stage controlled orbital ball mill are 15mm, 10mm and 3mm respectively, and the diameters of the three-stage screen fence are 100μm, 30μm and 5μm, respectively.
采用干法粒度仪对所得粉末的粒径进行检测，得到平均粒径为4μm。The particle diameter of the obtained powder was measured by a dry particle size analyzer to obtain an average particle diameter of 4 μm.
实施例2Example 2
将天然泥炭土(有机质含量为55wt％)在圆桶中经过旋切得到粒径为950μm的泥碳土，旋切过程中吹入55℃以下的风，使水份含量达到5％，经过常温管道输送到料仓，均匀掺和为所制备土壤调理剂总重量7％的碱(CaO与NaOH各一半)，通过一个向下的管道，自然下落，输送到三级可控变轨球磨机入口。三级可控变轨球磨机在水平方向的振动频率为40Hz、振幅为20cm，垂直方向的振动频率为40Hz、振幅为20cm的振动条件下进行研磨，每小时出粉500kg。The natural peat soil (organic matter content: 55wt%) was spin-cut in a drum to obtain a peat soil with a particle size of 950μm, and the wind below 55°C was blown during the rotary cutting process to make the moisture content reach 5%. The pipeline is transported to the silo, and the alkali (half of CaO and NaOH), which is uniformly added to the total weight of the prepared soil conditioner, is naturally dropped by a downward pipe and sent to the inlet of the three-stage controlled orbital ball mill. The three-stage controllable orbital ball mill grinds in a horizontal direction with a vibration frequency of 40 Hz, an amplitude of 20 cm, a vibration frequency of 40 Hz in the vertical direction, and an amplitude of 20 cm, and 500 kg of powder per hour.
其中，三级可控变轨球磨机中的三个磨仓使用的磨球的直径分别为30mm、15mm和10mm，三级滤筛栅栏的孔径分别为500μm、80μm和20μm。Among them, the diameter of the grinding balls used in the three grinding chambers of the three-stage controllable orbital ball mill are 30mm, 15mm and 10mm, respectively, and the apertures of the three-stage screen fence are 500μm, 80μm and 20μm, respectively.
采用干法粒度仪方法对所得粉末的粒径进行检测，得到平均粒径为13μm。The particle size of the obtained powder was examined by a dry particle size analyzer method to obtain an average particle diameter of 13 μm.
实施例3Example 3
将天然泥炭土(有机质含量为60wt％)在圆桶中经过旋切得到粒径为890μm的泥碳土，旋切过程中吹入85℃以下的风，使水份含量达到10％，经过常温管道输送到料仓，均匀掺和为所制备土壤调理剂总重量5％的碱(KOH)，通过一个向下的管道，自然下落，输送到三级可控变轨球磨机入口。三级可控变轨球磨机在水平方向的振动频率为60Hz、振幅为38cm，垂直方向的振动频率为10Hz、振幅为10cm的振动条件下进行研磨，每小时出粉450kg。The natural peat soil (organic matter content: 60wt%) was spin-cut in a drum to obtain a peat soil with a particle size of 890μm. During the rotary cutting process, the wind below 85°C was blown to make the moisture content reach 10%. The pipe is conveyed to the silo and uniformly mixed with alkali (KOH), which is 5% of the total weight of the prepared soil conditioner, through a downward pipe, naturally falling, and transported to the inlet of the three-stage controlled orbital ball mill. The three-stage controllable orbital ball mill grinds in a horizontal direction with a vibration frequency of 60 Hz, an amplitude of 38 cm, a vertical vibration frequency of 10 Hz, and an amplitude of 10 cm, and 450 kg of powder per hour.
其中，三级可控变轨球磨机中的三个磨仓使用的磨球的直径分别为18mm、12mm和6mm，三级滤筛栅栏的孔径分别为180μm、40μm和6μm。Among them, the diameters of the grinding balls used in the three grinding chambers of the three-stage controlled orbital ball mill are 18 mm, 12 mm and 6 mm, respectively, and the diameters of the three-stage sieve fence are 180 μm, 40 μm and 6 μm, respectively.
采用干法粒度仪方法对所得粉末的粒径进行检测，得到平均粒径为5μm。 The particle diameter of the obtained powder was measured by a dry particle size analyzer method to obtain an average particle diameter of 5 μm.
实施例4Example 4
将天然泥炭土(有机质含量为88wt％)在圆桶中经过旋切得到粒径为800μm的泥碳土，旋切过程中吹入75℃以下的风，使水份含量达到8％，经过常温管道输送到料仓，均匀掺和为所制备土壤调理剂总质量5％的碱(KOH)及2wt％的硒土(含硒0.5wt％)，通过一个向下的管道，自然下落，输送到三级可控变轨球磨机入口。三级可控变轨球磨机在水平方向的振动频率为30Hz、振幅为18cm，垂直方向的振动频率为20Hz、振幅为15cm的振动条件下进行研磨，每小时出粉300kg。The natural peat soil (organic matter content: 88wt%) was spin-cut in a drum to obtain a peat soil with a particle size of 800μm. During the rotary cutting process, the wind below 75°C was blown to make the moisture content reach 8%. Pipeline is transported to the silo, uniformly mixed with 5% of the total mass of the prepared soil conditioner (KOH) and 2wt% of selenium (containing 0.5wt% of selenium), through a downward pipe, naturally falling, transported to Three-stage controllable orbital ball mill inlet. The three-stage controllable orbital ball mill grinds in a horizontal direction with a vibration frequency of 30 Hz, an amplitude of 18 cm, a vibration frequency of 20 Hz in the vertical direction, and an amplitude of 15 cm, and 300 kg of powder per hour.
其中，三级可控变轨球磨机中的三个磨仓使用的磨球的直径分别为15mm、13mm和5mm，三级滤筛栅栏的孔径分别为150μm、60μm和4μm。Among them, the diameters of the grinding balls used in the three grinding chambers of the three-stage controllable orbital ball mill are 15mm, 13mm and 5mm, respectively, and the apertures of the three-stage screen fence are 150μm, 60μm and 4μm, respectively.
采用冲击磨与气流分级机闭合使用方法，通过对气流分级机功率控制，对所得粉末的粒径进行检测，可以得到平均粒径为9μm。The impact grinding and the air classifier are used to close the use method, and the particle size of the obtained powder is detected by the power control of the air classifier to obtain an average particle diameter of 9 μm.
实施例5Example 5
将天然矿物泥炭土，有机质含量为79％，经除砂，普通破碎机破碎到粒径2mm，在75℃风干，使含水量达到10％，送入冲击磨入料口，经过气流分级机分级后成品出口，对所得粉末进行检测，可以得到矿物腐植质粉末平均粒径为9μm。冲击磨功率调到60KW，气流分级机功率调到25KW，每小时出粉900kg。The natural mineral peat soil has an organic matter content of 79%. After sand removal, the ordinary crusher is crushed to a particle size of 2 mm, air-dried at 75 ° C, and the water content is 10%, sent to the impact grinding feed port, and classified by a gas classifier. After the finished product is exported, the obtained powder is tested to obtain an average particle diameter of the mineral humus powder of 9 μm. The impact grinding power is adjusted to 60KW, the power of the air classifier is adjusted to 25KW, and the powder is 900kg per hour.
采用干法粒度仪方法对所得粉末的粒径进行检测，得到平均粒径为9μm。The particle diameter of the obtained powder was measured by a dry particle size analyzer method to obtain an average particle diameter of 9 μm.
实施例6Example 6
向含有机质60％的泥炭土中加入NaOH、KOH形成混合物，其中NaOH的加入量是混合物重量的3％，KOH的加入量是混合物重量的5％。将混合物分两级研磨筛分，加工到平均粒径为5μm，3000目以上占80％，PH值为8.5的土壤调理剂。To the 60% soil-containing peat soil, NaOH and KOH were added to form a mixture, wherein NaOH was added in an amount of 3% by weight of the mixture, and KOH was added in an amount of 5% by weight of the mixture. The mixture was sieved in two stages and processed to a soil conditioner having an average particle diameter of 5 μm, a mesh size of 80% or more, and a pH of 8.5.
治理目标是广东梅州PH值为5.3，有机质含量为1.15％，重度酸化板结地1000平米。The target of governance is that Meizhou, Guangdong has a PH value of 5.3, an organic matter content of 1.15%, and a heavily acidified plated land of 1,000 square meters.
将30kg上述土壤调理剂倒入5立方米盛满水的水池中，溶解度大于90％，PH值为8.5，搅拌后，均匀浇灌到土壤表面，半小时后土壤疏松，自地面往下35cm取土壤1kg加水50kg，化验土壤PH值为6.5，三个月后土壤有机质含量为1.85％，化验土壤的电导率为450μs/cm，土壤状态明显改良。Pour 30kg of the above soil conditioner into a pool of 5 cubic meters filled with water, the solubility is more than 90%, the pH is 8.5, after mixing, evenly watered to the surface of the soil, the soil is loose after half an hour, and 1kg of soil is taken from the ground 35cm down. Adding 50kg of water, the soil pH value is 6.5, the soil organic matter content is 1.85% after three months, the conductivity of the test soil is 450μs/cm, and the soil state is obviously improved.
实施例7Example 7
向含有机质65％的泥炭土中加入KOH形成混合物，其中KOH的加入量是混合物重量的3％。将混合物分三级研磨筛分，加工到平均粒径为5μm，PH值为7.2的土壤调理剂。To the 65% soil-containing peat soil was added KOH to form a mixture in which KOH was added in an amount of 3% by weight of the mixture. The mixture was sieved in three stages and processed to a soil conditioner having an average particle size of 5 μm and a pH of 7.2.
治理目标是PH值为8.6，含盐量2.4％，重度盐碱地30亩。The target of treatment is PH value of 8.6, salt content of 2.4%, and heavy saline-alkali land of 30 mu.
使用10吨载水量洒水车，每次加入上述土壤调理剂50kg，共用水200吨，土壤调理剂1吨。24小时后，取30cm土壤测PH值7.5。种植玉米20亩，出苗率大于81％，成活率95％， 10亩其它作物，成活率大于70％，成活率93％。三个月后，土壤有机质含量提高17.3倍，化验土壤的电导率为397μs/cm。Use a 10 ton water-capacity sprinkler, add 50 kg of the above soil conditioner each time, share 200 tons of water, and 1 ton of soil conditioner. After 24 hours, 30 cm soil was taken to measure pH 7.5. Planting 20 mu of corn, the emergence rate is greater than 81%, and the survival rate is 95%. For 10 mu of other crops, the survival rate is greater than 70% and the survival rate is 93%. After three months, the soil organic matter content increased by 17.3 times, and the conductivity of the tested soil was 397 μs/cm.
实施例8Example 8
治理目标是沙化厚度大于30cm，有机质含量为1.3％的沙化地20亩。The goal of the treatment is to sand 20 acres of sandy land with a thickness of more than 30cm and an organic matter content of 1.3%.
采用实施例7的土壤调理剂，其用量600Kg，用法同上，沧州中捷农场，种植芹菜10亩，产量21823斤，生菜10亩，产量31252斤。三个月后，土壤有机质含量2.1％，化验土壤的电导率为400μs/cm。The soil conditioner of the embodiment 7 is used, the dosage is 600Kg, the usage is the same as above, the Zhongjie farm of Zhangzhou, 10 mu of celery is planted, the yield is 21823 kg, the lettuce is 10 mu, and the output is 31252 kg. After three months, the soil organic matter content was 2.1%, and the conductivity of the tested soil was 400 μs/cm.
实施例9Example 9
向含有机质75％的泥炭土中加入KOH形成混合物，其中KOH的加入量为混合物总重量的3％。对混合物进行破碎至1mm及以下，然后采用三级研磨筛分加工到平均粒径为5μm，3000目以上占70％，PH值7.2的土壤调理剂。To the 75% soil-containing peat soil was added KOH to form a mixture in which KOH was added in an amount of 3% by weight based on the total weight of the mixture. The mixture was crushed to 1 mm or less and then processed by a three-stage grinding sieve to a soil conditioner having an average particle diameter of 5 μm, a volume of 3,000 or more, 70%, and a pH of 7.2.
治理目标是：云南熔岩盆地，岩石上土壤平均厚度少于8.2cm，土壤有机质含量低于1.5％的土地10亩。The target of governance is: Yunnan lava basin, the average soil thickness on the rock is less than 8.2cm, and the soil organic matter content is less than 1.5% of the land 10 acres.
上述土壤调理剂用量600Kg，用法同上，种植萝卜、南瓜各5亩。萝卜产量6350斤，南瓜产量12665斤。三个月后，土壤有机质含量为15％，平均土壤厚度为11cm，化验土壤的电导率为366μs/cm。The above-mentioned soil conditioning agent dosage is 600Kg, the usage is the same as above, and 5 acres of radish and pumpkin are planted. The yield of radish is 6,350 kg, and the yield of pumpkin is 12,665 kg. After three months, the soil organic matter content was 15%, the average soil thickness was 11 cm, and the conductivity of the test soil was 366 μs/cm.
实施例10Example 10
向含有机质70％的泥炭土中加入KOH、矿物质形成混合物，其中KOH的加入量为混合物总重量的5％，矿物质的加入量为混合物总重量的2.0％。对混合物进行破碎至1mm及以下，然后采用三级研磨筛分加工到平均粒径为15μm，PH值7.2的土壤调理剂。KOH, a mineral-forming mixture was added to 70% of the peat soil containing organic matter, wherein KOH was added in an amount of 5% by weight based on the total weight of the mixture, and the mineral was added in an amount of 2.0% by weight based on the total weight of the mixture. The mixture was crushed to 1 mm or less and then processed to a soil conditioner having an average particle size of 15 μm and a pH of 7.2 by three-stage grinding.
治理目标是：云南熔岩盆地，岩石上土壤平均厚度少于8.2cm，土壤有机质含量低于1.8％的土地10亩。The goal of governance is: Yunnan lava basin, the average soil thickness on the rock is less than 8.2cm, and the soil organic matter content is less than 1.8% of the land 10 acres.
上述土壤调理剂用量600Kg，用法同上，种植萝卜、南瓜各5亩。萝卜产量6380斤，南瓜产量12668斤。三个月后，土壤有机质含量为2.2％，平均土壤厚度为13cm，化验土壤的电导率为350μs/cm。The above-mentioned soil conditioning agent dosage is 600Kg, the usage is the same as above, and 5 acres of radish and pumpkin are planted. The yield of radish is 6380 kg, and the yield of pumpkin is 12668 kg. After three months, the soil organic matter content was 2.2%, the average soil thickness was 13 cm, and the conductivity of the test soil was 350 μs/cm.
实施例11Example 11
向含有机质70％的泥炭土中加入KOH、矿物质形成混合物，其中KOH的加入量为混合物总重量的5％，矿物质的加入量为混合物总重量的2.0％。对混合物进行破碎至1mm及以下，然后采用三级研磨筛分加工到平均粒径为0.5μm，PH值7.0的土壤调理剂。KOH, a mineral-forming mixture was added to 70% of the peat soil containing organic matter, wherein KOH was added in an amount of 5% by weight based on the total weight of the mixture, and the mineral was added in an amount of 2.0% by weight based on the total weight of the mixture. The mixture was crushed to 1 mm or less and then processed to a soil conditioner having an average particle diameter of 0.5 μm and a pH of 7.0 using a three-stage grinding sieve.
治理目标是：云南熔岩盆地，岩石上土壤平均厚度少于8.2cm，土壤有机质含量低于1.9％的土地10亩。 The target of governance is: Yunnan lava basin, the average soil thickness on the rock is less than 8.2cm, and the soil organic matter content is less than 1.9% of the land 10 acres.
上述土壤调理剂用量600Kg，用法同上，种植萝卜、南瓜各5亩。萝卜产量6450斤，南瓜产量12692斤。三个月后，土壤有机质含量为2.2％，平均土壤厚度为15cm，化验土壤的电导率为320μs/cm。The above-mentioned soil conditioning agent dosage is 600Kg, the usage is the same as above, and 5 acres of radish and pumpkin are planted. The yield of radish is 6450 kg, and the yield of pumpkin is 12692 kg. After three months, the soil organic matter content was 2.2%, the average soil thickness was 15 cm, and the conductivity of the test soil was 320 μs/cm.
对比例1Comparative example 1
向含有机质60％的泥炭土中加入NaOH、KOH形成混合物，其中NaOH的加入量是混合物重量的3％，KOH的加入量是混合物重量的5％，混合后得到PH值为9.2的土壤修复剂。Adding NaOH and KOH to a 60% peat soil containing organic matter to form a mixture, wherein NaOH is added in an amount of 3% by weight of the mixture, and KOH is added in an amount of 5% by weight of the mixture, and after mixing, a soil repairing agent having a pH of 9.2 is obtained. .
治理目标是广东梅州PH值为5.3，有机质含量为1.15％，重度酸化板结地1000平米。The target of governance is that Meizhou, Guangdong has a PH value of 5.3, an organic matter content of 1.15%, and a heavily acidified plated land of 1,000 square meters.
将30kg上述土壤修复剂倒入5立方米盛满水的水池中，PH值为9.2，搅拌后，均匀浇灌到土壤表面，24小时内土壤疏松，自地面往下35cm取土壤1kg加水50kg，化验土壤PH值为5.7，三个月后土壤有机质含量为1.2％，化验土壤的电导率为750μs/cm，土壤酸化状态改良不明显。Pour 30kg of the above soil remediation agent into a 5 cubic meter water-filled pool with a pH of 9.2. After mixing, uniformly water the soil to the surface of the soil. The soil is loose within 24 hours. Take 1kg of water and 50kg of water from the ground 35cm down to test the soil. The pH value is 5.7. After three months, the soil organic matter content is 1.2%, the conductivity of the tested soil is 750 μs/cm, and the soil acidification state is not improved.
对比例2Comparative example 2
将含有机质65％的泥炭土中加工到平均粒径为74μm(200目)，PH值为6.3的土壤修复剂。A soil repairing agent having an average particle diameter of 74 μm (200 mesh) and a pH of 6.3 was processed in 65% of peat soil containing organic matter.
治理目标是PH值为8.6，含盐量2.4％，重度盐碱地30亩。The target of treatment is PH value of 8.6, salt content of 2.4%, and heavy saline-alkali land of 30 mu.
将土壤修复剂1吨均匀撒播在重度盐碱地土壤表面上。24小时后，取30cm土壤测PH值8.4。种植玉米20亩，出苗率30％，成活率5％，10亩其它作物，成活率3％。三个月后，土壤有机质含量提高0.3倍，化验土壤的电导率为1100μs/cm。One ton of soil remediation agent was spread evenly on the surface of the soil with heavy saline soil. After 24 hours, 30 cm soil was taken to measure pH 8.4. Planting 20 mu of corn, the emergence rate is 30%, the survival rate is 5%, and 10 mu of other crops have a survival rate of 3%. After three months, the soil organic matter content increased by 0.3 times, and the conductivity of the tested soil was 1100 μs/cm.
从上述实施例6至11以及对比例1和2对土壤的改良效果来看，尽管现有的土壤修复剂对土壤调节也具有一定的作用，但由于含有机质的泥炭土的粒径比较大，泥炭土中的有机质多以有机高分子物质存在，其中具有活性的官能团并未得到充分释放和发挥，因而较实施例6至11对土壤改良效果差。From the above-mentioned Examples 6 to 11 and Comparative Examples 1 and 2, in view of the improvement effect of the soil, although the existing soil remediation agent has a certain effect on soil conditioning, since the particle size of the peat soil containing organic matter is relatively large, The organic matter in the peat soil is mostly present as an organic high molecular substance, and the active functional group is not sufficiently released and exerted, so that the soil improvement effect is inferior to that of Examples 6 to 11.
其中，从实施例6与对比例1的比较来看，对比例1中的泥炭土未经研磨加工，因而颗粒较大，与碱混合形成的土壤修复剂pH值偏高，因而对于重度酸化地的pH值调节作用与实施例6相同，但对比例1中以高分子存在的有机质难以与土壤中的无机离子发生作用，因而也难以改良酸化地的电导率。电导率越高，说明土壤中的无机离子含量越高；而电导率越低，说明改良后的土壤中的无机离子被有机分子结合。Among them, from the comparison of Example 6 and Comparative Example 1, the peat soil in Comparative Example 1 was not ground, so the particles were large, and the soil repairing agent formed by mixing with the alkali had a high pH value, and thus was severely acidified. The pH adjustment effect was the same as that of Example 6, but in the comparative example 1, the organic substance existing as a polymer hardly reacted with inorganic ions in the soil, and thus it was difficult to improve the conductivity of the acidified. The higher the conductivity, the higher the inorganic ion content in the soil; the lower the conductivity, the inorganic ions in the modified soil are bound by organic molecules.
从以上的描述中，可以看出，本发明上述的实施例实现了如下技术效果：通过多级研磨筛分的方法，将泥炭土经过低温干燥预处理后，加工到微米级或更细，使其具有极强的活性，保持其原有有机质中的多种高分子官能团活性，对土壤的团粒结构、物质运移、保湿性等都能快速产生积极有益的作用，并使微量元素能快速补充，有利于土壤微生物生长和土壤有机质的效能发挥。而且，通过大量应用实验发现，超细泥炭土混合物，进入土壤后分化快，营 养素齐全，螯合力强，用量少，功效高。使用过程无任何二次污染，资源利用率高，效果明显，土壤治理见效快，对于我国目前土壤生态修复建设具有十分重要的意义。From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the peat soil is subjected to low-temperature drying pretreatment and processed to a micron order or finer by a multi-stage grinding and screening method. It has extremely strong activity, maintains the activity of various polymer functional groups in its original organic matter, and can quickly and positively produce positive and beneficial effects on the agglomerate structure, material migration and moisture retention of the soil, and can quickly supplement trace elements. It is beneficial to the growth of soil microbes and the effectiveness of soil organic matter. Moreover, through a large number of application experiments, it was found that the ultra-fine peat mixture, after entering the soil, differentiated quickly, camp Complete nutrients, strong chelation, low dosage and high efficacy. There is no secondary pollution during the use process, the resource utilization rate is high, the effect is obvious, and the soil treatment is effective, which is of great significance for the current soil ecological restoration construction in China.
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。 The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims (14)

  1. 将有机质含量大于60％的天然泥炭土，预处理到含水量5％～15％，粒径1mm以下，加入5％～10％的碱和0.1％～5％的矿物质经常温常压下研磨到粒径5微米以下的超细粉末，与土壤掺和或溶入100～300倍的水在土壤表面浇洒。The natural peat soil with organic matter content greater than 60% is pretreated to a water content of 5% to 15%, a particle size of 1 mm or less, and 5% to 10% of alkali and 0.1% to 5% of minerals are added to grind under normal temperature and pressure. To an ultrafine powder having a particle size of 5 μm or less, water mixed with soil or dissolved in 100 to 300 times is sprinkled on the surface of the soil.
  2. 根据权利要求1所述，碱和矿质可以与泥炭土单独使用，或者复合使用。According to claim 1, the alkali and the mineral may be used alone or in combination with the peat soil.
  3. 根据权利要求1所述，该方法适用于酸性板结地、盐碱地、沙化地、石漠化地。According to claim 1, the method is applicable to acid slab formation, saline-alkali soil, sandy land, rocky desertification.
  4. 根据权利要求1所述，泥炭土微粉土壤调理剂有机质含量大于55％。According to claim 1, the peat soil micronized soil conditioner has an organic matter content of more than 55%.
  5. 一种土壤调理剂，其特征在于，所述土壤调理剂包括泥炭土，所述泥炭土中有机质的含量≥50wt％，所述泥炭土的平均粒径为0.5～15μm。A soil conditioner, characterized in that the soil conditioner comprises peat soil, the content of organic matter in the peat soil is ≥50 wt%, and the average particle diameter of the peat soil is 0.5-15 μm.
  6. 根据权利要求5所述土壤调理剂，其特征在于，所述泥炭土的平均粒径为8～13μm或者所述泥炭土的平均粒径≤5μm。The soil conditioner according to claim 5, wherein the peat soil has an average particle diameter of 8 to 13 μm or the peat soil has an average particle diameter of ≤ 5 μm.
  7. 根据权利要求5或6所述土壤调理剂，其特征在于，所述泥炭土中有机质的含量≥55wt％，优选所述泥炭土中有机质的含量≥60wt％；更优选所述泥炭土中有机质的含量≥65wt％。The soil conditioner according to claim 5 or 6, wherein the content of the organic matter in the peat soil is ≥ 55 wt%, preferably the content of the organic matter in the peat soil is ≥ 60 wt%; more preferably, the organic matter in the peat soil The content is ≥65wt%.
  8. 根据权利要求5或6所述土壤调理剂，其特征在于，所述土壤调理剂还包括碱和/或矿物质，优选所述碱在所述土壤调理剂中含量为5wt％～10wt％，优选所述矿物质在所述土壤调理剂中的含量为0.1wt％～5wt％。The soil conditioner according to claim 5 or 6, wherein the soil conditioner further comprises an alkali and/or a mineral, preferably the base is contained in the soil conditioner in an amount of 5 wt% to 10 wt%, preferably The mineral is present in the soil conditioner in an amount of from 0.1% by weight to 5% by weight.
  9. 一种土壤调理剂的制备方法，其特征在于，所述制备方法包括：A method for preparing a soil conditioner, characterized in that the preparation method comprises:
    将有机质含量≥50wt％的泥炭土进行破碎，得到破碎土；The peat soil having an organic matter content of ≥50% by weight is crushed to obtain a crushed earth;
    对所述破碎土进行分级研磨筛分，得到平均粒径为0.5～15μm的泥炭土。The crushed soil was subjected to fractional grinding and sieving to obtain peat soil having an average particle diameter of 0.5 to 15 μm.
  10. 根据权利要求9所述的制备方法，其特征在于，所述破碎土的平均粒径≤1mm，优选所述破碎土中水分含量为5wt％～15wt％。The preparation method according to claim 9, wherein the crushed soil has an average particle diameter of ≤ 1 mm, and preferably the moisture content of the crushed soil is 5 wt% to 15 wt%.
  11. 根据权利要求10所述的制备方法，其特征在于，对所述破碎土进行分级研磨筛分的步骤包括：The preparation method according to claim 10, wherein the step of performing fractional grinding and screening on the crushed earth comprises:
    对所述破碎土进行第一次研磨筛分，得到平均粒径为100～500μm的土粒；Performing the first grinding and sieving on the crushed soil to obtain soil particles having an average particle diameter of 100 to 500 μm;
    对所述粒径为100～500μm的土粒进行第二次研磨筛分，得到平均粒径为30～80μm的土粒；The soil particles having a particle diameter of 100 to 500 μm are subjected to a second grinding and sieving to obtain soil particles having an average particle diameter of 30 to 80 μm;
    对所述粒径为30～80μm的土粒进行第三次研磨筛分，得到平均粒径为0.5～15μm的泥炭土；The soil particles having a particle diameter of 30 to 80 μm are subjected to a third grinding and sieving to obtain peat soil having an average particle diameter of 0.5 to 15 μm;
    优选地，得到平均粒径为8～13μm的泥炭土；或者得到平均粒径≤5μm的泥炭土。Preferably, peat soil having an average particle diameter of 8 to 13 μm is obtained; or peat soil having an average particle diameter of ≤ 5 μm is obtained.
  12. 根据权利要求9至11中任一项所述的制备方法，其特征在于，在对所述破碎土进行分级研磨筛分之前，所述制备方法还包括向所述破碎土中添加碱和/或矿物质的步骤，优选所 述碱的添加量以所述泥炭土中碱含量为5wt％～10wt％，所述矿物质含量为0.1wt％～5wt％为准。The preparation method according to any one of claims 9 to 11, characterized in that before the grading and grinding the crushed soil, the preparation method further comprises adding a base and/or to the crushed soil. Mineral step, preferred The alkali is added in an amount of 5 wt% to 10 wt% of the alkali content in the peat soil, and the mineral content is 0.1 wt% to 5 wt%.
  13. 权利要求5至8中任一项所述的土壤调节剂在土壤调节中的应用，其特征在于，所述应用包括对酸化板结土壤、盐碱土壤、沙化土壤、石漠化土壤或重金属污染土壤的调节。Use of the soil conditioner according to any one of claims 5 to 8 for soil conditioning, characterized in that the application comprises acidifying slab soil, saline soil, desertified soil, rocky desert soil or heavy metal contaminated soil Adjustment.
  14. 根据权利要求13所述的应用，其特征在于，所述应用包括将所述土壤调节剂直接埋入土壤中，或者将所述土壤调节剂制备成溶液喷洒在土壤表面。 The use according to claim 13, wherein the application comprises embedding the soil conditioner directly into the soil or preparing the soil conditioner to be sprayed onto the surface of the soil.
PCT/CN2016/106958 2015-11-23 2016-11-23 Soil conditioner, preparation method therefor, and application thereof WO2017088767A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201510808990.6 2015-11-23
CN201510808988.9 2015-11-23
CN201510808988.9A CN105268516A (en) 2015-11-23 2015-11-23 Superfine powder preparing method
CN201510808990.6A CN105295927A (en) 2015-11-23 2015-11-23 Preparation method of micro powder soil conditioning agent

Publications (1)

Publication Number Publication Date
WO2017088767A1 true WO2017088767A1 (en) 2017-06-01

Family

ID=58763968

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/106958 WO2017088767A1 (en) 2015-11-23 2016-11-23 Soil conditioner, preparation method therefor, and application thereof

Country Status (2)

Country Link
CN (2) CN116218537A (en)
WO (1) WO2017088767A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114830991A (en) * 2019-10-10 2022-08-02 淄博清大粉体材料工程有限公司 Desert planting structure

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107311757A (en) * 2017-07-06 2017-11-03 波普克国际生态科技（北京）有限公司 Micropowders formula applied to the mineral humus mixture of arable land Heavy Metal Pollution Control
CN111348974A (en) * 2020-03-16 2020-06-30 广州华景建设有限公司 Novel ecological garden greening soil remediation treatment agent and preparation method thereof
CN112661577A (en) * 2020-11-16 2021-04-16 周鑫 Preparation method and equipment of composite soil conditioner and composite soil conditioner

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101322974A (en) * 2008-07-04 2008-12-17 安徽省农业科学院土壤肥料研究所 Soil heavy metal passivation agent for vegetable field
CN101755513A (en) * 2008-12-24 2010-06-30 中国科学院沈阳应用生态研究所 Method and application for improving aeolian sandy soil by using peat
CN102220136A (en) * 2011-03-30 2011-10-19 中国科学院亚热带农业生态研究所 Soil heavy metal composite passivator with humic acid minerals and preparation method thereof
CN102304363A (en) * 2011-05-06 2012-01-04 内蒙古禾创农业科技发展有限公司 Composition employing power plant waste and peat and weathered coal resources to improve saline-alkali soil
CN104479684A (en) * 2014-12-09 2015-04-01 孟涛 Curing agent and method for heavy metal in polluted soil
CN105268516A (en) * 2015-11-23 2016-01-27 辛衷瑜 Superfine powder preparing method
CN105295927A (en) * 2015-11-23 2016-02-03 辛衷瑜 Preparation method of micro powder soil conditioning agent

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1177910C (en) * 2001-10-08 2004-12-01 凯莉琳 Efficient improver of salinized soil
CN1253529C (en) * 2003-07-04 2006-04-26 吴笑天 Nano bog muck series compositions, and their produsts and uses
CN101096598B (en) * 2007-07-03 2011-06-15 天津市农业资源与环境研究所 Amendment for inhibiting brackish water irrigated soil polysalt
CN103160284A (en) * 2013-03-14 2013-06-19 中国矿业大学(北京) Regenerated sandy soil conditioner and preparation method thereof
CN104232099A (en) * 2014-05-30 2014-12-24 昆明绿色中迅生物有限公司 Modifier for acidic soil
CN104087304A (en) * 2014-07-07 2014-10-08 天津博生源肥料科技发展有限公司 Method for producing natural and organic conditioner for alkalescent saline-alkali soil
CN104610974B (en) * 2015-02-05 2017-10-10 甘肃西部凹凸棒石应用研究院 A kind of soil conditioner of saline-alkaline soil preparation method
CN105295941A (en) * 2015-11-23 2016-02-03 辛衷瑜 Plant remains deactivator for passivating heavy metals in micropowder soil

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101322974A (en) * 2008-07-04 2008-12-17 安徽省农业科学院土壤肥料研究所 Soil heavy metal passivation agent for vegetable field
CN101755513A (en) * 2008-12-24 2010-06-30 中国科学院沈阳应用生态研究所 Method and application for improving aeolian sandy soil by using peat
CN102220136A (en) * 2011-03-30 2011-10-19 中国科学院亚热带农业生态研究所 Soil heavy metal composite passivator with humic acid minerals and preparation method thereof
CN102304363A (en) * 2011-05-06 2012-01-04 内蒙古禾创农业科技发展有限公司 Composition employing power plant waste and peat and weathered coal resources to improve saline-alkali soil
CN104479684A (en) * 2014-12-09 2015-04-01 孟涛 Curing agent and method for heavy metal in polluted soil
CN105268516A (en) * 2015-11-23 2016-01-27 辛衷瑜 Superfine powder preparing method
CN105295927A (en) * 2015-11-23 2016-02-03 辛衷瑜 Preparation method of micro powder soil conditioning agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114830991A (en) * 2019-10-10 2022-08-02 淄博清大粉体材料工程有限公司 Desert planting structure
CN114830991B (en) * 2019-10-10 2023-10-24 淄博清大粉体材料工程有限公司 Desert planting structure

Also Published As

Publication number Publication date
CN116218537A (en) 2023-06-06
CN106701092A (en) 2017-05-24

Similar Documents

Publication Publication Date Title
WO2017088767A1 (en) Soil conditioner, preparation method therefor, and application thereof
US10556842B2 (en) Dry powder processing
EP3148685B1 (en) Pelletising a polyhalite mineral
US10349574B2 (en) Fertiliser product
Wagner et al. Soil‐aggregate formation as influenced by clay content and organic‐matter amendment
Kelly et al. Incorporation of biochar carbon into stable soil aggregates: the role of clay mineralogy and other soil characteristics
CN106867541B (en) A kind of environment-friendly type heavy metal renovation agent and its application and slow release heavy metal remediation fertilizer
CN110305664A (en) Soil conditioner and preparation method thereof and application method
CN104559233A (en) Asphalt composition particle and preparation method thereof
CN105860987A (en) Composite type soil improvement agent and preparation method thereof
CN107930803A (en) A kind of screening plant for fruits and vegetables special fertilizer
CN105367156A (en) Fertilizer with kieselguhr and preparation method and use method thereof
CN103952029A (en) Method for preparing wear-resistant material from tungsten tailings
CN107739614A (en) It is a kind of can restoration of soil polluted by heavy metal conditioner preparation and its application
Andelkovic et al. Optimisation of phosphate loading on graphene oxide–Fe (III) composites–possibilities for engineering slow release fertilisers
CN205404228U (en) Device is prepared to geology ground lithology experiment granule
CN105295927A (en) Preparation method of micro powder soil conditioning agent
CN104326845A (en) Grape special-purpose organic compound fertilizer and production process thereof
NZ563529A (en) Size grading by air classification to prevent compaction of lime for aerial distribution
CN109665858B (en) A kind of raw material prilling process of crystallite foaming material and its application
CN102845460B (en) Phosethyl-aluminum water dispersible granules and preparation method thereof
CN105013378A (en) Fertilizer crushing and mixing device used for improvement of saline-alkali land
CN204816353U (en) Broken mixing apparatus of fertilizer among saline soil reclamation
US11059756B1 (en) Pelletized fertilizer and methods of preparing pelletized fertilizer
CN106565315A (en) Efficient blueberry fertilizer with natural sterilizing carbon aerogel added and preparation method

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16867990

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16867990

Country of ref document: EP

Kind code of ref document: A1