Special organic fertilizer containing coal gangue and humic acid as well as production and use methods of special organic fertilizer

By developing a method for producing and using coal gangue humic acid organic fertilizer, the problems of high cost, low utilization rate, and soil improvement associated with compound fertilizers have been solved, achieving the effects of soil structure improvement, root promotion, and high and stable crop yields.

CN120842005APending Publication Date: 2025-10-28HENAN SHUAIPENGXIN AGRICULTURAL TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510966188.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

Existing compound fertilizers have high production costs, low raw material utilization rates, and strong equipment corrosion. They cannot improve soil structure, and traditional fertilization methods lead to fertilizer waste and are difficult to stimulate crop root growth.

Method used

This product uses coal gangue humic acid organic fertilizer, which contains urea, potassium sulfate, diammonium phosphate and humic acid powder. It is mixed in a specific ratio and processed into 3-4mm black spherical particles. Combined with production and application methods that improve soil structure, it promotes root growth.

Benefits of technology

It significantly improves soil structure, increases nitrogen fertilizer utilization, promotes root growth, reduces ammonia nitrogen volatilization, enhances crop resistance and fruit quality, optimizes the soil environment, and increases crop yield.

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Abstract

The invention discloses a coal gangue humic acid organic special fertilizer and a production and use method thereof, and belongs to the field of humic acid organic special fertilizers, the coal gangue humic acid organic special fertilizer comprises the following raw materials by weight: 10-20 parts of urea, 5-10 parts of potassium sulfate, 10-15 parts of diammonium phosphate, 3-7 parts of coal gangue, and 10-20 parts of humic acid raw powder, the coal gangue chemical components comprise 59.6087% of SiO2, 29.4408% of Al2O3, 0.22215% of CaO, 3.9259% of SO3, 0.0928% of MgO, 0.6676% of Na2O, 0.3093% of K2O, and 0.051% of P2O5; the gangue humic acid organic special fertilizer has good fertilizer efficiency, can improve the soil structure and promote crop growth, has good economic benefits, is convenient to produce and use, and is suitable for popularization and application.
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Description

Technical Field

[0001] This invention relates to the field of fertilizer technology, and in particular to a special organic fertilizer made from coal gangue humic acid and its production and application methods. Background Technology

[0002] Compound fertilizers, widely used in current agricultural production, use bentonite as a carrier to integrate nitrogen, phosphorus, and potassium nutrients. However, they suffer from problems such as high production costs, low raw material utilization, and strong equipment corrosion. More importantly, the added bentonite cannot improve soil structure, and long-term use will exacerbate soil compaction. At the same time, compound fertilizers are unlikely to stimulate crop root growth, and traditional broadcast fertilization methods also result in serious fertilizer waste.

[0003] While traditional humic acid fertilizers have advantages in utilization rate, root promotion, and soil improvement, there is still room for improvement in the actual effects of existing products. Therefore, there is an urgent need for a humic acid-based organic fertilizer with coal gangue as an auxiliary raw material, combined with appropriate production and application methods, to overcome the shortcomings of existing technologies. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems by providing a special organic fertilizer made from coal gangue humic acid that has good fertilizer effect, can improve soil structure, promote crop growth, has good economic benefits, and is also convenient to produce and use, as well as its production and use methods.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: a special organic fertilizer for coal gangue humic acid, comprising the following raw materials in parts by weight: 10-20 parts urea, 5-10 parts potassium sulfate, 10-15 parts diammonium phosphate, 3-7 parts coal gangue, and 10-20 parts humic acid raw powder.

[0006] Preferably, the composition includes 15 parts urea, 7 parts potassium sulfate, 12 parts diammonium phosphate, 5 parts coal gangue, and 15 parts humic acid powder.

[0007] Preferably, the chemical composition of the coal gangue comprises 59.6087% SiO2, 29.4408% Al2O3, 0.2215% CaO, 3.9259% SO3, 0.0928% MgO, 0.6676% Na2O, 0.3093% K2O, and 0.051% P2O5.

[0008] Preferably, the humic acid raw powder contains 62.5% organic matter and the remainder is water.

[0009] A method for producing a special organic fertilizer made from coal gangue humic acid includes the following steps: Step 1: Select mechanical equipment that matches the annual output, and prepare coal gangue warehouses and crushing workshops to meet production needs; Step 2: Take the raw materials required for production out of the warehouse and put them into storage. Input the required proportioning parameters on the electronic scale and start the belt scale for a trial run of 1 minute. Step 3: Collect the weighed raw materials and re-weigh them using a standard scale to check for errors in the electronic scale. The re-weighing should be repeated 2-3 times. Step 4: After all the electronic scales for the raw materials have been verified to be correct, the main control unit starts the machines in reverse order: first, start the finished product packaging scale and packaging conveyor belt, then start the screening machine, screening return conveyor belt and finished product conveyor belt, then start the air cooler and cooling drum, start the conveyor belt in front of the cooling drum, start the polishing machine and conveyor belt, start the granulator and conveyor belt, start the raw material proportioning double mixer and conveyor belt, start the raw material waste return conveyor belt, and start the electronic scale batching machine and conveyor belt. Step 5: After processing, the finished products are stacked by a palletizer or forklift and transported to the finished product warehouse.

[0010] A method for applying a special organic fertilizer made from coal gangue humic acid includes the following steps: S1: Adjust the seeder so that the seeding leg and the fertilizer leg are on the same straight line; S2: Adjust the depth of the seed and fertilizer inlets.

[0011] Preferably, in step S2, the depth of the seed tray is 5cm; the depth of the fertilizer tray is 15cm, and the seed and fertilizer are spaced 10cm apart.

[0012] This invention discloses a special organic fertilizer made from coal gangue humic acid, along with its production and application methods, which have the following beneficial effects: 1. It can reconstruct the soil aggregate structure and intelligently regulate water, fertilizer, air, and heat in the soil, significantly increasing the soil's exchange capacity. Simultaneously, it can adjust the soil's pH and strongly adsorb harmful substances in the soil, greatly enhancing soil activity. Its unique colloidal properties create an ideal habitat for soil microbial communities; 2. The special fertilizer is rich in various active humic acids, which can significantly enhance the root growth of crops, resulting in well-developed root systems that provide more stable support and more efficient nutrient absorption. Under the action of humic acid, the roots, stems, branches, and leaves of plants become stronger, and the efficiency of photosynthesis is greatly improved, accelerating nutrient absorption and increasing the rapid growth of crops; 3. It can significantly reduce the volatilization loss of ammonia nitrogen, significantly improving the utilization rate of nitrogen fertilizer, ensuring that every unit of nitrogen can be absorbed and utilized by crops. Humic acid promotes the presence of phosphorus in the soil, which is beneficial for plant absorption. It also effectively stores potassium ions, enabling the slow release of potassium fertilizer. This ensures that crops can continuously absorb potassium nourishment at different growth stages. Furthermore, it promotes the absorption of micronutrients by crops. Simultaneously, it provides favorable conditions for the growth of beneficial microorganisms in the soil, synergistically improving soil fertility. Finally, it enhances the survival ability of crops in drought environments. It strengthens the cold resistance of crops, significantly reduces pest and disease infestations, and effectively promotes the synthesis of sugars, starches, and proteins in crops. This significantly improves fruit quality and yield. Detailed Implementation

[0013] A special organic fertilizer for coal gangue humic acid, comprising the following raw materials in parts by weight: 10-20 parts urea, 5-10 parts potassium sulfate, 10-15 parts diammonium phosphate, 3-7 parts coal gangue, and 10-20 parts humic acid powder.

[0014] Urea provides nitrogen fertilizer for the special fertilizer; potassium sulfate provides potassium fertilizer for the special fertilizer; diammonium phosphate provides phosphorus fertilizer for the special fertilizer; coal gangue, humic acid powder and fertilizer are combined to form a special fertilizer with better fertilizer effect.

[0015] Example 1: The raw materials include the following parts by weight: 10 parts urea, 5 parts potassium sulfate, 10 parts diammonium phosphate, 3 parts coal gangue, and 10 parts humic acid powder.

[0016] Example 2: The raw materials include the following parts by weight: 15 parts urea, 7 parts potassium sulfate, 12 parts diammonium phosphate, 5 parts coal gangue, and 15 parts humic acid powder.

[0017] Example 3: The raw materials include the following parts by weight: 20 parts urea, 10 parts potassium sulfate, 15 parts diammonium phosphate, 7 parts coal gangue, and 20 parts humic acid powder.

[0018] The chemical composition of the coal gangue is as follows: SiO2 accounts for 59.6087%, Al2O3 accounts for 29.4408%, CaO accounts for 0.2215%, SO3 accounts for 3.9259%, MgO accounts for 0.0928%, Na2O accounts for 0.6676%, K2O accounts for 0.3093%, and P2O5 accounts for 0.051%.

[0019] The humic acid raw powder contains 62.5% organic matter and the remainder is water.

[0020] This invention relates to a special organic fertilizer made from coal gangue and humic acid. It not only improves soil structure, but also utilizes humic acid, a natural soil conditioner. Humic acid precisely restructures soil aggregates and intelligently regulates water, fertilizer, air, and heat in the soil, significantly increasing soil exchange capacity. It also adjusts soil pH and strongly adsorbs harmful substances, greatly enhancing soil activity. Its unique colloidal properties create an ideal habitat for soil microbial communities. Furthermore, it stimulates crop growth. This special fertilizer is rich in various active humic acids, significantly enhancing root growth, promoting root development, providing more stable support for plants, reducing the risk of lodging, and enabling more efficient nutrient absorption. Under the influence of humic acid, plant roots, stems, and leaves become stronger, and photosynthetic efficiency is greatly improved. It accelerates nutrient absorption and promotes rapid crop growth. Humic acid is a core element in enhancing fertilizer effectiveness, significantly reducing the volatilization loss of ammonia nitrogen. It significantly improves nitrogen fertilizer utilization, ensuring that every unit of nitrogen is fully absorbed and utilized by crops. Humic acid promotes the presence of phosphorus in the soil, which is beneficial for plant absorption. It effectively stores potassium ions, enabling the slow release of potassium fertilizer. This ensures that crops can continuously absorb potassium nutrients at different growth stages. It also promotes the absorption of micronutrients by crops. Simultaneously, it provides favorable conditions for the growth of beneficial microorganisms in the soil, synergistically improving soil fertility. In terms of stress resistance and quality improvement, humic acid can regulate the evaporation of water from crops by reducing the opening of stomata on crop leaves, enhancing their survival ability in drought environments. It also enhances the cold resistance of crops, significantly reduces pest and disease infestations, and effectively promotes the synthesis of sugars, starches, and proteins in crops. This significantly improves fruit quality and yield. As a high-quality organic fertilizer, humic acid is a powerful tool for improving sandy and alkaline soils. By integrating nitrogen, phosphorus, potassium, and various micronutrients, it can easily achieve high and stable crop yields.

[0021] In terms of pH regulation, humic acid is naturally weakly acidic, highly compatible with the pH environment required for crop growth. It can quickly loosen compacted clay soil and improve soil aeration and permeability. Proper use of humic acid can comprehensively optimize the soil environment. Humic acid can improve saline-alkali soils and reclaim tidal flats. Long-term consistent use can revitalize desertified soils and restore their vitality.

[0022] This invention also discloses a method for producing a special organic fertilizer made from coal gangue humic acid, comprising the following steps: Step 1: Preliminary preparations, including selecting machinery and equipment that match the annual output, and preparing coal gangue warehouses and crushing workshops to meet production needs; Step 2: Raw material measurement and verification. Take the raw materials required for production out of the warehouse and put them into storage. Input the required proportioning parameters on the electronic scale and start the belt scale for a 1-minute trial run. Step 3: Collect the weighed raw materials and re-weigh them using a standard scale to check for errors in the electronic scale. The re-weighing should be repeated 2-3 times. Step 4: Production process control. After all the electronic scales for the raw materials have been verified to be correct, the main control unit starts up the machines in reverse order: first, start the finished product packaging scale and packaging conveyor belt, then start the screening machine, screening return conveyor belt and finished product conveyor belt, then start the air cooler and cooling drum, start the conveyor belt in front of the cooling drum, start the polishing machine and conveyor belt, start the granulator and conveyor belt, start the raw material proportioning double mixer and conveyor belt, start the raw material waste return conveyor belt, and start the electronic scale batching machine and conveyor belt. Step 5: Finished product warehousing. After processing, the finished products are stacked by palletizers or forklifts and transported to the finished product warehouse.

[0023] The special fertilizer produced is granulated into 3-4mm black spherical granules by a granulator, which is suitable for mechanized sowing; because it contains nitrogen and has a slight ammonia smell, it is packaged with an inner plastic bag to effectively prevent nitrogen volatilization and ensure fertilizer stability.

[0024] The entire production line is fully operational and started up. During production, two 50-ton forklifts assist with material loading. Finished products are stacked by ton using palletizers or 1.5-ton forklifts and transported to the finished goods warehouse. The main equipment is electronically monitored; a malfunction in any part will halt the entire line. All environmental protection facilities in the production area are activated before production begins. A single production line can produce 50,000 or 100,000 tons annually.

[0025] Of course, a factory can also design the installation of multiple production lines.

[0026] A method for applying a special organic fertilizer made from coal gangue humic acid includes the following steps: S1: Adjust the seeder so that the seeding leg and the fertilizer leg are on the same straight line; S2: Adjust the depth of the seed and fertilizer inlets.

[0027] Preferably, in step S2, the depth of the seed tray is 5cm; the depth of the fertilizer tray is 15cm, and the seed and fertilizer are spaced 10cm apart.

[0028] The original sowing method involved two lines, with the seed tray and fertilizer tray spaced 18-20 centimeters apart. Before the seeds had even germinated, the nitrogen from the fertilizer was wasted because the seeds were sown too shallowly and not aligned with the fertilizer tray. Although hundreds of kilograms of fertilizer were used for sowing, it wasn't actually used for plant growth.

[0029] The application of humic acid-specific fertilizer will change the traditional fertilization method. By simply adjusting the sowing and seeding process on the seeder, the fertilizer can be fully utilized. Specifically, the seed and fertilizer feed chutes on the seeder are aligned on a single line, with the fertilizer feed chute being deeper (15 cm), while the seed feed chute remains at 5 cm. This method retains fertilizer and promotes seedling growth. With fertilizer on the bottom and seeds on top, and a 10 cm soil gap, the seeds are protected from burning. If the fertilizer is sown too shallowly, nitrogen evaporates more easily; if sown too deeply, evaporation is slower. When the seeds germinate and take root, the roots encounter the evaporated nitrogen, promoting plant growth. The original method, with two separate sowing lines, resulted in wasted nitrogen before the seeds germinated, as the fertilizer was not aligned with the line.

[0030] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A special organic fertilizer for coal gangue humic acid, characterized in that, The raw materials include the following parts by weight: 10-20 parts urea, 5-10 parts potassium sulfate, 10-15 parts diammonium phosphate, 3-7 parts coal gangue, and 10-20 parts humic acid powder.

2. The coal gangue humic acid organic fertilizer according to claim 1, characterized in that, The mixture contains 15 parts urea, 7 parts potassium sulfate, 12 parts diammonium phosphate, 5 parts coal gangue, and 15 parts humic acid powder.

3. The coal gangue humic acid organic fertilizer according to claim 1, characterized in that, The chemical composition of the coal gangue is as follows: SiO2 accounts for 59.6087%, Al2O3 accounts for 29.4408%, CaO accounts for 0.2215%, SO3 accounts for 3.9259%, MgO accounts for 0.0928%, Na2O accounts for 0.6676%, K2O accounts for 0.3093%, and P2O5 accounts for 0.051%.

4. The coal gangue humic acid organic fertilizer according to claim 1, characterized in that, The humic acid raw powder contains 62.5% organic matter and the remainder is water.

5. A method for producing a special organic fertilizer made from coal gangue humic acid, characterized in that, Includes the following steps: Step 1: Select mechanical equipment that matches the annual output, and prepare coal gangue warehouses and crushing workshops to meet production needs; Step 2: Take the raw materials required for production out of the warehouse and put them into storage. Enter the required proportioning parameters on the electronic scale and start the belt scale for a trial run of 1 minute. Step 3: Collect the weighed raw materials and re-weigh them using a standard scale to check for errors in the electronic scale. The re-weighing should be repeated 2-3 times. Step 4: After all the electronic scales for the raw materials have been verified to be correct, the main control unit starts the machines in reverse order: first, start the finished product packaging scale and packaging conveyor belt, then start the screening machine, screening return conveyor belt and finished product conveyor belt, then start the air cooler and cooling drum, start the conveyor belt in front of the cooling drum, start the polishing machine and conveyor belt, start the granulator and conveyor belt, start the raw material proportioning double mixer and conveyor belt, start the raw material waste return conveyor belt, and start the electronic scale batching machine and conveyor belt. Step 5: After processing, the finished products are stacked by a palletizer or forklift and transported to the finished product warehouse.

6. A method for using a special organic fertilizer made from coal gangue humic acid, characterized in that, Includes the following steps: S1: Adjust the seeder so that the seeding leg and the fertilizer leg are on the same straight line; S2: Adjust the depth of the seed and fertilizer inlets.

7. The method of using the coal gangue humic acid organic fertilizer according to claim 6, characterized in that, In step S2, the depth of the seed tray is 5cm; the depth of the fertilizer tray is 15cm, and the seed and fertilizer are spaced 10cm apart.