Production device of special fertilizer for potatoes

Abstract

The utility model discloses a special fertilizer production device for potatoes, which is characterized in that discharge ports of an industrial monoammonium metering belt conveyor, a potassium sulfate metering belt conveyor, an ammonium nitrate phosphorus metering belt conveyor and a trace element metering belt conveyor are respectively communicated with a feed port of a mixing tank, and a discharge port of the mixing tank is communicated with a roller granulator through a pipeline; a discharging port of the roller granulator is communicated with the fluidized bed dryer through a pipeline, a discharging port of the fluidized bed dryer is communicated with a feeding port of the powder flow cooler through a pipeline, and a discharging port in the bottom of the powder flow cooler is sequentially communicated with the particle shaper and the coating machine through pipelines. According to the utility model, zinc and manganese microelements for promoting potato growth can be uniformly added, the purpose of fertilizer efficiency improvement is achieved, and meanwhile, the powder flow cooling technology is applied, so that the device can stably operate for a long period, and the production effect is good.

Description

Technical Field

[0001] This utility model relates to the field of agricultural fertilizers, specifically to a potato-specific fertilizer production device. Background Technology

[0002] Currently, my country has the world's largest potato planting area, with an annual output of approximately 130 million tons, making it a significant global agricultural sector. With increasing consumer demand for fresh and high-quality potatoes, and the growth of foreign trade, the potato industry market is poised for further expansion. China's potato planting area remains stable, and its output has consistently ranked first in the world for many years, with yields increasing annually. The industrial chain is continuously strengthening and extending, having developed over 300 potato-based staple food products across six series and over 100 series of processed products. In Europe and the United States, potatoes are a staple food, and their consumer market is relatively stable. However, with the growing influence of healthy eating concepts, the requirements for potato quality and variety are also increasing. For example, the proportion of potato farms in some EU countries, such as Austria, has increased, and the potato market share is expected to expand further in the future.

[0003] Foreign countries have mature technologies in the research and development and production of potato-specific fertilizers, and their products are highly targeted and have precise nutrient content. For example, potassium chloride potato-specific fertilizers from some parts of Europe and the United States are widely used as base fertilizers in these regions, although their use is restricted in China. This is due to their high potassium content and economic benefits.

[0004] Currently, after ordinary fertilizers are applied to potato crops in cultivated land, some are transpired, dispersed, or washed away by water, while others are fixed and utilized by the soil and soil microorganisms. Only a portion is absorbed and utilized by the crops. Studies have shown that the utilization rates of urea and ammonium bicarbonate are 20%-46%, phosphate fertilizers (diammonium phosphate, monoammonium phosphate, and superphosphate) are 10%-25%, and potassium fertilizers are 45%-60%. Therefore, it is evident that the utilization rate of ordinary fertilizers for potato crops is very low.

[0005] Existing potato-specific fertilizers are mainly macronutrient fertilizers, with limited production and usage of micronutrient fertilizers, and the production equipment is also incomplete. Therefore, it is of great significance to develop equipment that can produce high-quality potato-specific fertilizers containing micronutrients such as manganese and zinc. Summary of the Invention

[0006] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a potato-specific fertilizer production device. This device can fully mix industrial monoammonium phosphate, potassium sulfate, ammonium nitrate phosphate, zinc sulfate heptahydrate, manganese sulfate, and other fertilizers. It also adds urease and other additives to the fertilizer to promote rapid absorption by plants and improve fertilizer efficiency. This approach strives to implement the national industrial policy of strictly controlling fertilizer use and improves economic benefits.

[0007] The technical solution of this utility model:

[0008] A potato-specific fertilizer production device includes a mixing tank. The outlets of an industrial monoammonium phosphate metering belt conveyor, a potassium sulfate metering belt conveyor, an ammonium nitrate phosphate metering belt conveyor, and a trace element metering belt conveyor are respectively connected to the inlet of the mixing tank. The outlet of the mixing tank is connected to a drum granulator via a pipe. The outlet of the drum granulator is connected to a fluidized bed dryer via a pipe. The outlet of the fluidized bed dryer is connected to the inlet of a powder flow cooler via a pipe. The bottom outlet of the powder flow cooler is connected to a particle shaper and a coating machine in sequence via pipes.

[0009] Preferably, the discharge port below the screen of the particle shaper is connected to the mixing tank via a pipe.

[0010] Preferably, the exhaust port at the top of the fluidized bed dryer is connected in sequence via a pipe to an induced draft fan, a cyclone dust collector, a water washing tower, and a chimney.

[0011] More preferably, the top of the water washing tower is provided with a primary water inlet pipe, the bottom of the water washing tower is connected to the top of the water washing tower via a pipe through a circulating pump, the bottom of the water washing tower is also connected to a storage tank via a pipe, and the storage tank is connected to a sewage treatment device via a pipe.

[0012] More preferably, the bottom discharge port of the cyclone dust collector is connected to the mixing tank via a pipe. It mainly collects and separates dust during the fluidized bed granulation process, and the separated fine dust is returned to the mixing tank for regranulation. The material is 316L stainless steel.

[0013] More preferably, the mixing tank is equipped with a double-layer stirring paddle, an online material level detector, and DCS remote transmission, mainly for mixing several potato-specific nutrients such as zinc and manganese in a certain proportion, and the material is 316L stainless steel.

[0014] Preferably, the mixing tank is provided with a spiral side with a side width of 40mm. The fertilizer rotates along the tank body to promote full mixing of fertilizer and trace elements. The mixing tank body has first ultrasonic oscillators on both sides of the discharge hopper. Through high-frequency oscillation, the discharge port is not blocked and the material does not stick.

[0015] Preferably, the drum granulator is a drum rotation forming granulator, mainly used to regranulate mixed fertilizers to obtain potato-specific fertilizer with a particle strength greater than 10N, and the material is 316L stainless steel.

[0016] The fluidized bed dryer is a hot air heated vibrating fluidized bed, mainly used to dry potato-specific fertilizer to obtain a special fertilizer with a moisture content of about 0.5%.

[0017] Preferably, the powder flow cooler is composed of tubes, through which fertilizer passes and water flows in the opposite direction, allowing for counter-current heat exchange between the fertilizer and water. Second ultrasonic oscillators are located on both sides of the discharge port to prevent fertilizer accumulation. This method is primarily used to cool potato-specific fertilizer to below 60°C before packaging, exhibiting high heat exchange efficiency and low water consumption.

[0018] Preferably, the discharge port of the screen below the pelletizer is connected to the mixing tank via a pipe. This process mainly involves screening the potato-specific fertilizer after granulation and cooling. Qualified products are packaged to obtain fertilizer with a moisture content of approximately 0.5%, while unqualified fine particles are returned to the mixing tank for re-granulation.

[0019] Preferably, the water washing tower is equipped with an online ammonia nitrogen ion detector and DCS remote transmission. The water washing tower is made of FRPP reinforced polypropylene and is an environmentally friendly dust washing treatment packed tower. It mainly washes fertilizer dust in the exhaust gas through countercurrent spray washing.

[0020] The core of the entire device lies in the mixing tank and the powder flow cooler. The specially designed mixing tank and powder flow cooler can achieve the uniform addition of trace elements such as zinc and manganese that promote potato growth, thereby improving fertilizer efficiency. At the same time, the application of powder flow cooling technology enables the device to operate stably for a long period of time and achieve good production results.

[0021] This utility model has the following beneficial effects:

[0022] 1. The specially designed gravity-type powder flow cooler allows for sufficient heat exchange between the material and the circulating water, resulting in high working efficiency and minimizing the risk of powdering and clumping of the fertilizer in the later stages.

[0023] 2. The quantitative and uniform addition of trace elements such as zinc and manganese results in high reagent addition efficiency and easy control of the equipment, which has a good promoting effect on potato growth. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of a fluidized bed dryer.

[0026] Figure 3 This is a schematic diagram of a powder flow cooler.

[0027] In the diagram: 1. Industrial monoammonium phosphate metering belt conveyor; 2. Potassium sulfate metering belt conveyor; 3. Ammonium nitrate phosphate metering belt conveyor; 5. Trace element metering belt conveyor; 6. Roller granulator; 7. Fluidized bed dryer; 8. Powder flow cooler; 9. Particle shaper; 10. Coating machine; 11. Exhaust fan; 12. Cyclone dust collector; 13. Water washing tower; 14. Chimney; 15. Primary water feed pipe; 16. Circulating pump; 17. Storage tank; 18. Double-layer agitator; 20. Spiral trough side; 21. First ultrasonic oscillator; 22. Tube; 23. Second ultrasonic oscillator. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Example 1

[0030] A potato-specific fertilizer production device includes a mixing tank 4. The outlets of an industrial monoammonium phosphate metering belt conveyor 1, a potassium sulfate metering belt conveyor 2, an ammonium nitrate phosphate metering belt conveyor 3, and a trace element metering belt conveyor 5 are respectively connected to the inlet of the mixing tank 4. The outlet of the mixing tank 4 is connected to a drum granulator 6 through a pipe. The outlet of the drum granulator 6 is connected to a fluidized bed dryer 7 through a pipe. The outlet of the fluidized bed dryer 7 is connected to the inlet of a powder flow cooler 8 through a pipe. The bottom outlet of the powder flow cooler 8 is sequentially connected to a particle shaper 9 and a coating machine 10 through a pipe.

[0031] Preferably, the discharge port below the screen of the particle shaper 9 is connected to the mixing tank 4 via a pipe.

[0032] Preferably, the exhaust port at the top of the fluidized bed dryer 7 is connected in sequence via a pipe to an induced draft fan 11, a cyclone dust collector 12, a water washing tower 13, and a chimney 14.

[0033] More preferably, the top of the water washing tower 13 is provided with a primary water inlet pipe 15, the bottom of the water washing tower 13 is connected to the top of the water washing tower 13 via a pipe and a circulating pump 16, and the bottom of the water washing tower 13 is also connected to a storage tank 17 via a pipe, and the storage tank 17 is connected to a sewage treatment device via a pipe.

[0034] More preferably, the bottom discharge port of the cyclone dust collector 12 is connected to the mixing tank 4 via a pipe. It mainly collects and separates dust during the fluidized bed granulation process, and the separated fine dust is returned to the mixing tank for regranulation. The material is 316L stainless steel.

[0035] More preferably, the mixing tank 4 is equipped with a double-layer stirring paddle, an online material level detector, and a DCS remote transmission device. It mainly mixes several potato-specific nutrients, zinc and manganese, in a certain proportion. The material is 316L stainless steel.

[0036] Preferably, the drum granulator 6 is a drum rotation forming granulator, mainly used to regranulate mixed fertilizers to obtain potato-specific fertilizer with a particle strength greater than 10N, and the material is 316L stainless steel.

[0037] The fluidized bed dryer 7 is a hot air heated vibrating fluidized bed, mainly used to dry potato-specific fertilizer to obtain a special fertilizer with a moisture content of about 0.5%.

[0038] Preferably, the powder flow cooler 8 is internally composed of tubes 22, through which fertilizer passes and water flows in the opposite direction, allowing for counter-current heat exchange between the fertilizer and water. Second ultrasonic oscillators 23 are located on both sides of the discharge port to prevent fertilizer accumulation. This system primarily cools potato-specific fertilizer to below 60°C before packaging, exhibiting high heat exchange efficiency and low water consumption.

[0039] Preferably, the discharge port of the screen below the pellet shaper 9 is connected to the mixing tank 4 via a pipe. This mainly involves screening the potato-specific fertilizer after granulation and cooling. Qualified products are packaged to obtain fertilizer with a moisture content of approximately 0.5%, while unqualified fine particles are returned to the mixing tank for regranulation.

[0040] Preferably, the water washing tower 13 is equipped with an online ammonia nitrogen ion detector and DCS remote transmission. The water washing tower is made of FRPP reinforced polypropylene and is an environmentally friendly dust washing treatment packed tower. It mainly washes fertilizer dust in the exhaust gas through countercurrent spray washing.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A potato-specific fertilizer production device, comprising a mixing tank (4), characterized in that, The discharge ports of the industrial monoammonium phosphate metering belt conveyor (1), potassium sulfate metering belt conveyor (2), ammonium nitrate phosphate metering belt conveyor (3), and trace element metering belt conveyor (5) are respectively connected to the inlet of the mixing tank (4). The discharge port of the mixing tank (4) is connected to the roller granulator (6) through a pipe. The discharge port of the roller granulator (6) is connected to the fluidized bed dryer (7) through a pipe. The discharge port of the fluidized bed dryer (7) is connected to the inlet of the powder flow cooler (8) through a pipe. The bottom discharge port of the powder flow cooler (8) is connected to the particle shaper (9) and the coating machine (10) in sequence through a pipe.

2. The potato-specific fertilizer production device according to claim 1, characterized in that: The discharge port below the screen of the particle shaper (9) is connected to the mixing tank (4) through a pipe.

3. The potato-specific fertilizer production device according to claim 1, characterized in that: The exhaust port at the top of the fluidized bed dryer (7) is connected in sequence via a pipe to an induced draft fan (11), a cyclone dust collector (12), a water washing tower (13), and a chimney (14).

4. The potato-specific fertilizer production device according to claim 3, characterized in that: The top of the water washing tower (13) is provided with a primary water inlet pipe (15). The bottom of the water washing tower (13) is connected to the top of the water washing tower (13) through a pipe via a circulating pump (16). The bottom of the water washing tower (13) is also connected to a storage tank (17) through a pipe. The storage tank (17) is connected to a sewage treatment device through a pipe.

5. The potato-specific fertilizer production device according to claim 3, characterized in that: The bottom discharge port of the cyclone dust collector (12) is connected to the mixing tank (4) through a pipe.

6. The potato-specific fertilizer production device according to claim 3, characterized in that: The mixing tank (4) is equipped with a double-layer stirring paddle (18).

7. The potato-specific fertilizer production device according to claim 6, characterized in that: The mixing tank (4) is provided with a spiral groove edge (20), the groove edge (20) is 40mm wide, and the mixing tank (4) is provided with a first ultrasonic oscillator (21) on both sides of the hopper.

8. The potato-specific fertilizer production device according to claim 1, characterized in that: The drum granulator (6) is a granulator for drum rotation forming and granulation, and the fluidized bed dryer (7) is a hot air heated vibrating fluidized bed.

9. A potato-specific fertilizer production device according to claim 1, characterized in that: The powder flow cooler (8) is composed of tubes (22) inside, and there are second ultrasonic oscillators (23) on both sides of the discharge port.

10. A potato-specific fertilizer production device according to claim 3, characterized in that: The discharge port of the screen below the particle shaper (9) is connected to the mixing tank (4) through a pipe, and the water washing tower (13) is equipped with an ammonia nitrogen ion detector.

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