Quick-acting humic acid urea, production device and production method

Abstract

The invention belongs to quick-acting humic acid urea, a production device and a production method. The quick-acting humic acid urea is prepared from the following raw materials in parts by weight: 97 to 100 parts of urea, 1 to 1.8 parts of a humic acid synergistic solution, 0.1 to 0.3 part of an amino acid synergistic solution, 1 to 3 parts of an alginic acid synergistic solution and 0.2 to 0.6 part of an alginate oligosaccharide synergist, the humic acid synergistic liquid, the amino acid synergistic liquid, the alginic acid synergistic liquid and the alginate oligosaccharide synergist are added on the basis of the urea, and the humic acid, the urea and the synergist interact with one another, so that the early-stage conversion rate of the urea is increased, meanwhile, the later-stage nutrient supply is ensured, the growth and absorption of overground parts of crops are promoted, and the advantages of yield increase and high nitrogen fertilizer utilization rate are realized.

Description

Technical Field

[0001] The invention belongs to the technical field of fertilizers, and in particular relates to a quick-acting humic acid urea, a production device and a production method. Background Art

[0002] Urea is an acyl ammonium nitrogen fertilizer. It needs to be decomposed by urease and converted into ammonium nitrogen before it can be absorbed by plants. The utilization rate is generally 30%-40%. It has the disadvantages of low fertilizer efficiency, rapid volatilization, environmental pollution, and soil compaction. According to the molecular structure and biological activity of humic acid, urea complex can be generated when added to urea. The interaction effects of humic acid and urea are as follows: ① The study of the interaction mechanism between peat, lignite and weathered coal humic acid (HA) and urea by chemical and spectral analysis found that the reaction between humic acid and urea is extremely complex (nucleophilic addition, ionization, free radicals and complex coordination, etc.). The oxygen-containing functional groups in humic acid are all involved in the reaction in this process, among which the carboxyl group has the greatest influence on the depth of the reaction. ② After urea is applied to the soil, it is easily hydrolyzed by urease to release NH3 and CO2, thereby causing the volatilization and loss of ammonia. Humic acid and urea are both organic substances, and they can undergo complexation reactions, which can reduce the exchange capacity of humic acid, reduce the carboxyl content, and increase the water-soluble humic acid content. ③ Ammonia mainly reacts with the carboxyl group on the humic acid molecule, and selectively reacts with the ortho-diphenol group. ④ The hydroquinone structure inhibits the urease activity of the soil. Humic acid has functional groups such as quinone and phenolic hydroxyl groups similar to the hydroquinone structure, which slowly releases urea. The fertilizer effect of humic acid can last for about 100 days. In the early stage of crop growth, humic acid can effectively inhibit the hydrolysis of urea in the soil, thereby reducing the volatilization loss and leaching loss of nitrogen; in the middle and late stages of crop growth, the inhibitory effect of humic acid weakens, thereby adapting to the demand for nitrogen for crop growth and development during the vigorous period.

[0003] From the above, we can know that humic acid urea has the functions of reducing the urea conversion rate and improving the utilization rate of nitrogen fertilizer. Therefore, when humic acid urea is applied as topdressing, it is affected by its slow decomposition characteristics, resulting in a smaller absorption amount per unit time and a slower seedling-raising effect than ordinary urea. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects in the prior art and provide a fast-acting humic acid urea, a production device and a production method which can quickly promote seedling growth, aboveground growth and high aboveground biomass accumulation by applying topdressing under the premise of maintaining the utilization rate of the original humic acid urea nitrogen fertilizer.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A quick-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 97-100 parts of urea, 1-1.8 parts of humic acid enhancing liquid, 0.1-0.3 parts of amino acid enhancing liquid, 1-3 parts of alginate enhancing liquid and 0.2-0.6 parts of brown algae oligosaccharide enhancing agent.

[0007] Preferably, the fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 98-100 parts of urea, 1.2-1.8 parts of humic acid enhancing liquid, 0.1-0.3 parts of amino acid enhancing liquid, 2-3 parts of alginate enhancing liquid and 0.2-0.4 parts of brown algae oligosaccharide enhancing agent.

[0008] Preferably, the fast-acting humic acid urea is prepared by including the following raw materials in parts by weight: 98-99 parts of urea, 1.2-1.6 parts of humic acid enhancing liquid, 0.2-0.3 parts of amino acid enhancing liquid, 2.6-3 parts of alginate enhancing liquid and 0.3-0.4 parts of brown algae oligosaccharide enhancing agent.

[0009] Preferably, the fast-acting humic acid urea is prepared by including the following raw materials in parts by weight: 99 parts of urea, 1.5 parts of humic acid enhancing liquid, 0.3 parts of amino acid enhancing liquid, 2.8 parts of alginate enhancing liquid and 0.3 parts of brown algae oligosaccharide enhancing agent.

[0010] The present invention also provides a production device for quick-acting humic acid urea, which includes a urea production system, wherein the urea production system includes at least one evaporation tank, the outlet of the first evaporation tank is connected to the inlet of the second evaporation tank through a U-shaped tube, and the outlet of the second evaporation tank is connected to the granulation nozzle in the granulation tower through a first flow meter and a urea melting pump; a tee is provided on the U-shaped tube, and the third end of the tee is connected to an additive adding unit; the additive adding unit includes at least a dissolving part, and the dissolving part is connected to the third end of the tee through a concentration part, a cooling part and a second flow meter.

[0011] Preferably, the dissolving part comprises a dissolving tank, a desalted water inlet and an additive inlet are provided on the dissolving tank, a dissolving tank outlet pipe connected to the concentration part is provided at the lower part of the dissolving tank, and a first valve is provided on the dissolving tank outlet pipe.

[0012] Preferably, the concentration section comprises a concentration tank, a steam coil is provided outside the concentration tank, a concentration tank outlet pipe with a second valve and a concentration tank sampling pipe with a third valve are provided on one side of the lower part of the concentration tank.

[0013] Preferably, the cooling part includes a cooling tank and a circulating cooling water coil arranged outside the cooling tank, a temperature sensor is provided inside the cooling tank, a concentration tank outlet pipe with a fourth valve is provided at the lower part of the cooling tank, and the cooling tank outlet pipe is connected to the third end of the tee through a second flow meter.

[0014] The present invention also provides a method for producing fast-acting humic acid urea, comprising the following steps:

[0015] Step 1: Humic acid enhancing liquid, amino acid enhancing liquid, alginic acid enhancing liquid and brown algae oligosaccharide enhancing agent enter the dissolution tank through the additive inlet according to a proportion, desalted water enters the dissolution tank through the desalted water inlet, and the desalted water is mixed and dissolved with the above-mentioned additives to prepare an additive solution;

[0016] Step 2: The additive solution is passed through the outlet pipe of the dissolving tank into the concentration tank for concentration. The concentration process is to pass steam into the steam coil to heat the materials in the additive solution, and after heating, the water evaporates to reduce the water content in the additive solution; and the water content is tested by sampling the concentration tank sampling pipe through the third valve;

[0017] Step 3: When the water content in the additive solution in step 2 reaches a preset threshold, the additive solution with qualified water content is allowed to enter the cooling tank through the outlet pipe of the concentration tank with the second valve for cooling. The cooling process is as follows: the circulating cooling water exchanges heat with the additive solution through the circulating cooling water coil and cools it down, and the temperature of the additive solution in the cooling tank is detected by the temperature sensor;

[0018] Step 4: When the temperature of the additive solution in step 3 meets the preset threshold, the fourth valve is opened to allow the additive solution to enter the U-shaped tube and mix with the urea melt from the first evaporation tank, and the mixed material passes through the second evaporation tank, the first flow meter and the urea melt pump and then enters the granulation nozzle in the granulation tower for granulation; the process of mixing the additive solution and the urea melt is as follows: the additive solution is determined according to the amount of the urea melt, and is monitored by the second flow meter, and the flow is regulated by the fourth valve.

[0019] Preferably, the water content of the additive solution in step 2 is not more than 80%, the temperature of the additive solution in step 3 is not higher than 40°C, and the flow rate of the first flow meter in step 4 is 445-455m 3 / h, the flow rate in the second flow meter is 30.5~31.5m 3 / h.

[0020] According to the above-mentioned fast-acting humic acid urea, production device and production method, the present invention adds humic acid enhancer liquid, amino acid enhancer liquid, alginate enhancer liquid and brown algae oligosaccharide enhancer on the basis of urea, utilizes the interaction of humic acid, urea and enhancers to improve the early conversion rate of urea, while ensuring the later nutrient supply, promoting the growth and absorption of the aboveground part of crops, and achieving the purpose of increasing production and high nitrogen fertilizer utilization rate; wherein, the humic acid enhancer liquid is produced by Xinjiang Black Ecological Technology Co., Ltd.; the amino acid enhancer liquid is produced by Nanjing Xuankai Biotechnology Co., Ltd.; the alginate enhancer liquid is produced by Qingdao Hailiyuan Biotechnology Co., Ltd.; the brown algae oligosaccharide enhancer is produced by Wuhan Borun Technology Co., Ltd.; further, the essence of the present invention is urea, after adding humic acid, etc. When the additive is added, a violent reaction will occur, and severe foaming will occur. The volume of the slurry will expand by nearly 2 times. The viscosity of the slurry is high and there is a risk of overflow, which leads to the inability of the urea production system to operate normally, and the empty shell rate of the prepared urea reaches about 9%; the present invention sets a concentration part to concentrate the additive solution, a cooling part to cool the additive solution and a second flow meter to limit the addition amount of the additive solution, thereby achieving the characteristics of defoaming of the mixed slurry, reducing the operating risk and the empty shell rate, so that the system can reduce the empty shell rate of urea to about 5% under the premise of safe operation; it has the advantages of fast seedling promotion, promotion of aboveground growth and high accumulation of aboveground biomass, as well as ensuring the stable operation of the urea system, avoiding the risk of overflow and reducing the empty shell rate of urea particles under the premise of maintaining the utilization rate of the original humic acid urea nitrogen fertilizer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 This is the infrared spectrum of the product of Test Example 4 of the present invention.

[0024] Figure 3 This is the infrared spectrum of the sample product of the present invention. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Reference Figure 1 The present invention relates to a fast-acting humic acid urea, a production device and a production method, wherein the fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 97 to 100 parts of urea, 1 to 1.8 parts of humic acid enhancing liquid, 0.1 to 0.3 parts of amino acid enhancing liquid, 1 to 3 parts of alginate enhancing liquid and 0.2 to 0.6 parts of brown algae oligosaccharide enhancing agent.

[0027] Furthermore, the fast-acting humic acid urea is prepared by including the following raw materials in parts by weight: 98-100 parts of urea, 1.2-1.8 parts of humic acid enhancing liquid, 0.1-0.3 parts of amino acid enhancing liquid, 2-3 parts of alginate enhancing liquid and 0.2-0.4 parts of brown algae oligosaccharide enhancing agent.

[0028] Furthermore, the fast-acting humic acid urea is prepared by including the following raw materials in parts by weight: 98-99 parts of urea, 1.2-1.6 parts of humic acid enhancing liquid, 0.2-0.3 parts of amino acid enhancing liquid, 2.6-3 parts of alginate enhancing liquid and 0.3-0.4 parts of brown algae oligosaccharide enhancing agent.

[0029] Furthermore, the fast-acting humic acid urea is prepared by including the following raw materials in parts by weight: 99 parts of urea, 1.5 parts of humic acid enhancing liquid, 0.3 parts of amino acid enhancing liquid, 2.8 parts of alginate enhancing liquid and 0.3 parts of brown algae oligosaccharide enhancing agent.

[0030] The additives in the urea produced in the present invention include humic acid enhancer liquid, amino acid enhancer liquid, alginate enhancer liquid and brown algae oligosaccharide enhancer. The humic acid enhancer liquid is produced by Xinjiang Black Ecological Technology Co., Ltd.; the amino acid enhancer liquid is produced by Nanjing Xuankai Biotechnology Co., Ltd.; the alginate enhancer liquid is produced by Qingdao Hailiyuan Biotechnology Co., Ltd.; and the brown algae oligosaccharide enhancer is produced by Wuhan Borun Technology Co., Ltd. The invention adds a synergistic substance to the original humic acid urea, utilizes the interaction of humic acid, urea and the synergistic substance, improves the early conversion rate of urea, ensures the supply of nutrients in the later period, promotes the growth and absorption of the aboveground part of crops, and achieves the purpose of increasing production and high nitrogen fertilizer utilization rate; wherein, the complex synergistic effect of humic acid and urea, the synergistic effect of the synergistic substance and urea, and the synergistic effect of humic acid and the synergistic substance interact with each other to achieve quick effect; the invention is suitable for the existing fertilization method, but in the application process, it is necessary to avoid direct contact between the invention and seeds and root systems, and avoid excessive application to cause seedling burning; in addition, the invention can be directly applied as base fertilizer and topdressing during crop growth, and the topdressing application effect is better, and the application amount is 5-30kg / mu.

[0031] The present invention also provides a production device for quick-acting humic acid urea, which includes a urea production system, wherein the urea production system includes at least a first-stage evaporation tank 1, the outlet of the first-stage evaporation tank 1 is connected to the inlet of the second-stage evaporation tank 3 through a U-shaped tube 2, and the outlet of the second-stage evaporation tank 3 is connected to a granulation nozzle 5 in a granulation tower through a first flowmeter 22 and a urea melting pump 4; a tee is provided on the U-shaped tube 2, and the third end of the tee is connected to an additive adding unit; the additive adding unit includes at least a dissolving part, and the dissolving part is connected to the third end of the tee through a concentration part, a cooling part and a second flowmeter 23. The production device described in the present invention is used to produce fast-acting humic acid urea. It is well known that when humic acid contacts urea melt, a violent reaction will occur, and foaming will occur violently. The volume of the slurry expands by nearly 2 times, the slurry has high viscosity, and there is a risk of overflow, resulting in the urea production system being unable to operate normally. The conventional operation is to add a defoaming agent to achieve stable operation of the urea production system. This conventional operation will cause the defoaming agent to remain in the urea granule product, which will not only cause the nutrient element content of urea to be substandard, but also there is a risk of soil pollution, and the empty shell rate of urea granules is generally about 8%, resulting in poor quality of the urea granule product. Based on the above defects, the present invention utilizes the reduction of the water content of the additive solution, the reduction of the temperature of the additive solution, and the precise regulation of the flow rate of the additive solution to ensure the stable operation of the urea system, avoid the risk of overflow and reduce the empty shell rate of the urea granules.

[0032] Furthermore, the dissolving part comprises a dissolving tank 6, a desalted water inlet 7 and an additive inlet 8 are provided on the dissolving tank 6, a dissolving tank outlet pipe 9 connected to the concentration part is provided at the lower part of the dissolving tank 6, and a first valve 10 is provided on the dissolving tank outlet pipe 9. The dissolving tank 6 described in the present invention is mainly used to dissolve the humic acid enhancing liquid, the amino acid enhancing liquid, the alginic acid enhancing liquid and the brown algae oligosaccharide enhancing agent in water so as to be added to the subsequent urea molten liquid; the aforementioned additives are fully dissolved in the desalted water, and stirring, heating and other means can be used to achieve the characteristics of improving the dissolution efficiency.

[0033] Furthermore, the concentration part includes a concentration tank 11, a steam coil 12 is provided outside the concentration tank 11, a concentration tank outlet pipe 14 with a second valve 13 and a concentration tank sampling pipe 16 with a third valve 15 are provided on one side of the lower part of the concentration tank 11. The concentration tank 11 described in the present invention is mainly used to perform heat exchange on the above-mentioned fully dissolved additive solution, while increasing the temperature of the additive solution, reducing its water content, thereby achieving the purpose of concentrating the additive solution; in order to achieve uniform heat exchange of the additive solution, a stirring element can be provided inside the concentration tank 11, and a water vapor discharge channel is also provided on the top of the concentration tank 11 to ensure safe operation.

[0034] Furthermore, the cooling part includes a cooling tank 17, and a circulating cooling water coil 18 arranged outside the cooling tank 17, a temperature sensor 19 is arranged inside the cooling tank 18, and a cooling tank outlet pipe 21 with a fourth valve 20 is arranged at the lower part of the cooling tank 17, and the concentration tank outlet pipe 21 is connected to the third end of the tee through a second flowmeter 23. The present invention solves the technical problems of urea mixture overflow and high urea granule empty shell rate, and the main technical means used are to reduce the water content in the additive solution (concentration), reduce the temperature of the additive solution and control the flow rate of the additive solution; so as to achieve stable and safe operation of the urea system and control the urea granule empty shell rate at about 5%.

[0035] The present invention also provides a method for producing fast-acting humic acid urea, comprising the following steps:

[0036] Step 1: Humic acid enhancing liquid, amino acid enhancing liquid, alginic acid enhancing liquid and brown algae oligosaccharide enhancing agent enter the dissolution tank 6 through the additive inlet 8 in proportion, desalted water enters the dissolution tank 6 through the desalted water inlet 7, and the desalted water is mixed and dissolved with the above-mentioned additives to prepare an additive solution;

[0037] Step 2: The additive solution is passed through the outlet pipe 9 of the dissolving tank into the concentration tank 11 for concentration. The concentration process is to pass steam into the steam coil 12 to heat the material in the additive solution, and evaporate the water after heating to reduce the water content in the additive solution; and sample the concentration tank sampling pipe 16 through the third valve 15 to detect the water content;

[0038] Step 3: When the water content in the additive solution in step 2 reaches a preset threshold, the additive solution with qualified water content is allowed to enter the cooling tank 17 through the concentration tank outlet pipe 14 with the second valve 13 for cooling. The cooling process is as follows: the circulating cooling water exchanges heat with the additive solution through the circulating cooling water coil 18 and cools down the additive solution, and the temperature of the additive solution in the cooling tank 17 is detected by the temperature sensor 19;

[0039] Step 4: When the temperature of the additive solution in step 3 meets the preset threshold, the fourth valve 20 is opened to allow the additive solution to enter the U-tube 2 and mix with the urea melt from the first evaporation tank 1. The mixed material passes through the second evaporation tank 3, the first flowmeter 22 and the urea melt pump 4 and then enters the granulation nozzle 5 in the granulation tower for granulation; the process of mixing the additive solution and the urea melt is as follows: the additive solution is determined according to the amount of the urea melt, and is monitored by the second flowmeter 23, and the flow is regulated by the fourth valve 20.

[0040] Furthermore, the water content of the additive solution in step 2 is not more than 80%, the temperature of the additive solution in step 3 is not higher than 40°C, and the flow rate of the first flow meter 22 in step 4 is 445-455m 3 / h, the flow rate in the second flow meter 23 is 30.5~31.5m 3 / h.

[0041] In order to explain the present invention in more detail, the present invention is further described in conjunction with embodiments. Specific embodiments are as follows:

[0042] Example 1

[0043] A fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 97 parts of urea, 1 part of humic acid enhancing liquid, 0.1 part of amino acid enhancing liquid, 1 part of alginate enhancing liquid and 0.2 part of brown algae oligosaccharide enhancing agent.

[0044] A production device for quick-acting humic acid urea, the production device includes a urea production system, the urea production system includes at least one evaporation tank 1, the outlet of the first evaporation tank 1 is connected to the inlet of the second evaporation tank 3 through a U-shaped tube 2, the outlet of the second evaporation tank 3 is connected to the granulation nozzle 5 in the granulation tower through a first flowmeter 22 and a urea melting pump 4; a tee is provided on the U-shaped tube 2, the third end of the tee is connected to an additive adding unit; the additive adding unit includes at least a dissolving part, the dissolving part is connected to the third end of the tee through a concentration part, a cooling part and a second flowmeter 23. The dissolving part includes a dissolving tank 6, the dissolving tank 6 is provided with a desalted water inlet 7 and an additive inlet 8, the lower part of the dissolving tank 6 is provided with a dissolving tank outlet pipe 9 connected to the concentration part, and the dissolving tank outlet pipe 9 is provided with a first valve 10. The concentration part includes a concentration tank 11, a steam coil 12 is provided outside the concentration tank 11, a concentration tank outlet pipe 14 with a second valve 13 and a concentration tank sampling pipe 16 with a third valve 15 are provided on one side of the lower part of the concentration tank 11. The cooling part includes a cooling tank 17 and a circulating cooling water coil 18 provided outside the cooling tank 17, a temperature sensor 19 is provided inside the cooling tank 18, a cooling tank outlet pipe 21 with a fourth valve 20 is provided at the lower part of the cooling tank 17, and the concentration tank outlet pipe 21 is connected to the third end of the tee through a second flowmeter 23.

[0045] The present invention also provides a method for producing fast-acting humic acid urea, comprising the following steps:

[0046] Step 1: Humic acid enhancing liquid, amino acid enhancing liquid, alginic acid enhancing liquid and brown algae oligosaccharide enhancing agent enter the dissolution tank 6 through the additive inlet 8 in proportion, desalted water enters the dissolution tank 6 through the desalted water inlet 7, and the desalted water is mixed and dissolved with the above-mentioned additives to prepare an additive solution;

[0047] Step 2: The additive solution is passed through the outlet pipe 9 of the dissolving tank into the concentration tank 11 for concentration. The concentration process is to pass steam into the steam coil 12 to heat the material in the additive solution, and evaporate the water after heating to reduce the water content in the additive solution; and sample the concentration tank sampling pipe 16 through the third valve 15 to detect the water content;

[0048] Step 3: When the water content in the additive solution in step 2 reaches a preset threshold, the additive solution with qualified water content is allowed to enter the cooling tank 17 through the concentration tank outlet pipe 14 with the second valve 13 for cooling. The cooling process is as follows: the circulating cooling water exchanges heat with the additive solution through the circulating cooling water coil 18 and cools down the additive solution, and the temperature of the additive solution in the cooling tank 17 is detected by the temperature sensor 19;

[0049] Step 4: When the temperature of the additive solution in step 3 meets the preset threshold, the fourth valve 20 is opened to allow the additive solution to enter the U-shaped tube 2 and mix with the urea melt from the first-stage evaporation tank 1. The mixed material passes through the second-stage evaporation tank 3, the first flowmeter 22 and the urea melt pump 4 and then enters the granulation nozzle 5 in the granulation tower for granulation; the process of mixing the additive solution and the urea melt is as follows: the additive solution is determined according to the amount of the urea melt, and is monitored by the second flowmeter 23, and the flow is regulated by the fourth valve 20.

[0050] Furthermore, the water content of the additive solution in step 2 is 80%, the temperature of the additive solution in step 3 is 40° C., and the flow rate of the first flow meter 22 in step 4 is 445 m / s. 3 / h, the flow rate in the second flow meter 23 is 30.5m 3 / h.

[0051] Example 2

[0052] A fast-acting humic acid urea is prepared from the following raw materials in parts by weight: 98 parts of urea, 1.8 parts of humic acid enhancing liquid, 0.3 parts of amino acid enhancing liquid, 3 parts of alginate enhancing liquid and 0.6 parts of brown algae oligosaccharide enhancing agent.

[0053] A production device for quick-acting humic acid urea, the production device includes a urea production system, the urea production system includes at least one evaporation tank 1, the outlet of the first evaporation tank 1 is connected to the inlet of the second evaporation tank 3 through a U-shaped tube 2, the outlet of the second evaporation tank 3 is connected to the granulation nozzle 5 in the granulation tower through a first flowmeter 22 and a urea melting pump 4; a tee is provided on the U-shaped tube 2, the third end of the tee is connected to an additive adding unit; the additive adding unit includes at least a dissolving part, the dissolving part is connected to the third end of the tee through a concentration part, a cooling part and a second flowmeter 23. The dissolving part includes a dissolving tank 6, the dissolving tank 6 is provided with a desalted water inlet 7 and an additive inlet 8, the lower part of the dissolving tank 6 is provided with a dissolving tank outlet pipe 9 connected to the concentration part, and the dissolving tank outlet pipe 9 is provided with a first valve 10. The concentration part includes a concentration tank 11, a steam coil 12 is provided outside the concentration tank 11, a concentration tank outlet pipe 14 with a second valve 13 and a concentration tank sampling pipe 16 with a third valve 15 are provided on one side of the lower part of the concentration tank 11. The cooling part includes a cooling tank 17 and a circulating cooling water coil 18 provided outside the cooling tank 17, a temperature sensor 19 is provided inside the cooling tank 18, a cooling tank outlet pipe 21 with a fourth valve 20 is provided at the lower part of the cooling tank 17, and the concentration tank outlet pipe 21 is connected to the third end of the tee through a second flowmeter 23.

[0054] The present invention also provides a method for producing fast-acting humic acid urea, comprising the following steps:

[0055] Step 1: Humic acid enhancing liquid, amino acid enhancing liquid, alginic acid enhancing liquid and brown algae oligosaccharide enhancing agent enter the dissolution tank 6 through the additive inlet 8 in proportion, desalted water enters the dissolution tank 6 through the desalted water inlet 7, and the desalted water is mixed and dissolved with the above-mentioned additives to prepare an additive solution;

[0056] Step 2: The additive solution is passed through the outlet pipe 9 of the dissolving tank into the concentration tank 11 for concentration. The concentration process is to pass steam into the steam coil 12 to heat the material in the additive solution, and evaporate the water after heating to reduce the water content in the additive solution; and sample the concentration tank sampling pipe 16 through the third valve 15 to detect the water content;

[0057] Step 3: When the water content in the additive solution in step 2 reaches a preset threshold, the additive solution with qualified water content is allowed to enter the cooling tank 17 through the concentration tank outlet pipe 14 with the second valve 13 for cooling. The cooling process is as follows: the circulating cooling water exchanges heat with the additive solution through the circulating cooling water coil 18 and cools down the additive solution, and the temperature of the additive solution in the cooling tank 17 is detected by the temperature sensor 19;

[0058] Step 4: When the temperature of the additive solution in step 3 meets the preset threshold, the fourth valve 20 is opened to allow the additive solution to enter the U-tube 2 and mix with the urea melt from the first evaporation tank 1. The mixed material passes through the second evaporation tank 3, the first flowmeter 22 and the urea melt pump 4 and then enters the granulation nozzle 5 in the granulation tower for granulation; the process of mixing the additive solution and the urea melt is as follows: the additive solution is determined according to the amount of the urea melt, and is monitored by the second flowmeter 23, and the flow is regulated by the fourth valve 20.

[0059] Furthermore, the water content of the additive solution in step 2 is 79%, the temperature of the additive solution in step 3 is 39° C., and the flow rate of the first flow meter 22 in step 4 is 455 m / s. 3 / h, the flow rate in the second flow meter 23 is 31.5m 3 / h.

[0060] Example 3

[0061] A fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 100 parts of urea, 1.4 parts of humic acid enhancing liquid, 0.2 parts of amino acid enhancing liquid, 2 parts of alginate enhancing liquid and 0.4 parts of brown algae oligosaccharide enhancing agent.

[0062] A production device for quick-acting humic acid urea, the production device includes a urea production system, the urea production system includes at least one evaporation tank 1, the outlet of the first evaporation tank 1 is connected to the inlet of the second evaporation tank 3 through a U-shaped tube 2, the outlet of the second evaporation tank 3 is connected to the granulation nozzle 5 in the granulation tower through a first flowmeter 22 and a urea melting pump 4; a tee is provided on the U-shaped tube 2, the third end of the tee is connected to an additive adding unit; the additive adding unit includes at least a dissolving part, the dissolving part is connected to the third end of the tee through a concentration part, a cooling part and a second flowmeter 23. The dissolving part includes a dissolving tank 6, the dissolving tank 6 is provided with a desalted water inlet 7 and an additive inlet 8, the lower part of the dissolving tank 6 is provided with a dissolving tank outlet pipe 9 connected to the concentration part, and the dissolving tank outlet pipe 9 is provided with a first valve 10. The concentration part includes a concentration tank 11, a steam coil 12 is provided outside the concentration tank 11, a concentration tank outlet pipe 14 with a second valve 13 and a concentration tank sampling pipe 16 with a third valve 15 are provided on one side of the lower part of the concentration tank 11. The cooling part includes a cooling tank 17 and a circulating cooling water coil 18 provided outside the cooling tank 17, a temperature sensor 19 is provided inside the cooling tank 18, a concentration tank outlet pipe 21 with a fourth valve 20 is provided at the lower part of the cooling tank 17, and the concentration tank outlet pipe 21 is connected to the third end of the tee through a second flowmeter 23.

[0063] The present invention also provides a method for producing fast-acting humic acid urea, comprising the following steps:

[0064] Step 1: Humic acid enhancing liquid, amino acid enhancing liquid, alginic acid enhancing liquid and brown algae oligosaccharide enhancing agent enter the dissolution tank 6 through the additive inlet 8 in proportion, desalted water enters the dissolution tank 6 through the desalted water inlet 7, and the desalted water is mixed and dissolved with the above-mentioned additives to prepare an additive solution;

[0065] Step 2: The additive solution is passed through the outlet pipe 9 of the dissolving tank into the concentration tank 11 for concentration. The concentration process is to pass steam into the steam coil 12 to heat the material in the additive solution, and evaporate the water after heating to reduce the water content in the additive solution; and sample the concentration tank sampling pipe 16 through the third valve 15 to detect the water content;

[0066] Step 3: When the water content in the additive solution in step 2 reaches a preset threshold, the additive solution with qualified water content is allowed to enter the cooling tank 17 through the concentration tank outlet pipe 14 with the second valve 13 for cooling. The cooling process is as follows: the circulating cooling water exchanges heat with the additive solution through the circulating cooling water coil 18 and cools down the additive solution, and the temperature of the additive solution in the cooling tank 17 is detected by the temperature sensor 19;

[0067] Step 4: When the temperature of the additive solution in step 3 meets the preset threshold, the fourth valve 20 is opened to allow the additive solution to enter the U-tube 2 and mix with the urea melt from the first evaporation tank 1. The mixed material passes through the second evaporation tank 3, the first flowmeter 22 and the urea melt pump 4 and then enters the granulation nozzle 5 in the granulation tower for granulation; the process of mixing the additive solution and the urea melt is as follows: the additive solution is determined according to the amount of the urea melt, and is monitored by the second flowmeter 23, and the flow is regulated by the fourth valve 20.

[0068] Furthermore, the water content of the additive solution in step 2 is 78%, the temperature of the additive solution in step 3 is 38°C, and the flow rate of the first flow meter 22 in step 4 is 450m 3 / h, the flow rate in the second flow meter 23 is 31m 3 / h.

[0069] Example 4

[0070] A fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 100 parts of urea, 1.2 parts of humic acid enhancing liquid, 0.1 parts of amino acid enhancing liquid, 2 parts of alginate enhancing liquid and 0.2 parts of brown algae oligosaccharide enhancing agent.

[0071] The production device of the quick-acting humic acid urea in this embodiment is the same as that in the embodiment 1, and will not be described in detail. The production method is the same as that in the embodiment 1, except that the water content in the additive solution in step 2 is 80%, the temperature of the additive solution in step 3 is 37°C, and the flow rate of the first flow meter 22 in step 4 is 446m 3 / h, the flow rate in the second flow meter 23 is 31.2m 3 / h.

[0072] Example 5

[0073] A fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 98 parts of urea, 1.8 parts of humic acid enhancing liquid, 0.3 parts of amino acid enhancing liquid, 3 parts of alginate enhancing liquid and 0.4 parts of brown algae oligosaccharide enhancing agent.

[0074] The production device of the quick-acting humic acid urea in this embodiment is the same as that in the embodiment 1, and will not be described in detail. The production method is the same as that in the embodiment 1, except that the water content in the additive solution in step 2 is 77%, the temperature of the additive solution in step 3 is 39°C, and the flow rate of the first flow meter 22 in step 4 is 453m 3 / h, the flow rate in the second flow meter 23 is 31m 3 / h.

[0075] Example 6

[0076] A fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 99 parts of urea, 1.5 parts of humic acid enhancing liquid, 0.2 parts of amino acid enhancing liquid, 2.5 parts of alginate enhancing liquid and 0.3 parts of brown algae oligosaccharide enhancing agent.

[0077] The production device of the quick-acting humic acid urea in this embodiment is the same as that in the embodiment 1, and will not be described in detail. The production method is the same as that in the embodiment 1, except that the water content in the additive solution in step 2 is 79%, the temperature of the additive solution in step 3 is 38°C, and the flow rate of the first flow meter 22 in step 4 is 452m 3 / h, the flow rate in the second flow meter 23 is 30.9m 3 / h.

[0078] Example 7

[0079] A fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 99 parts of urea, 1.2 parts of humic acid enhancing liquid, 0.2 parts of amino acid enhancing liquid, 2.6 parts of alginate enhancing liquid and 0.3 parts of brown algae oligosaccharide enhancing agent.

[0080] The production device of the quick-acting humic acid urea in this embodiment is the same as that in the embodiment 1, and will not be described in detail; the production method is the same as that in the embodiment 1, except that: the water content in the additive solution in step 2 is 80%, the temperature of the additive solution in step 3 is 40°C, and the flow rate of the first flow meter 22 in step 4 is 450m 3 / h, the flow rate in the second flow meter 23 is 31m 3 / h.

[0081] Example 8

[0082] A fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 98 parts of urea, 1.6 parts of humic acid enhancing liquid, 0.3 parts of amino acid enhancing liquid, 3 parts of alginate enhancing liquid and 0.4 parts of brown algae oligosaccharide enhancing agent.

[0083] The production device of the quick-acting humic acid urea in this embodiment is the same as that in the embodiment 1, and will not be described in detail. The production method is the same as that in the embodiment 1, except that the water content in the additive solution in step 2 is 76%, the temperature of the additive solution in step 3 is 38°C, and the flow rate of the first flow meter 22 in step 4 is 449m 3 / h, the flow rate in the second flow meter 23 is 31.2m 3 / h.

[0084] Example 9

[0085] A fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 98.5 parts of urea, 1.4 parts of humic acid enhancing liquid, 0.25 parts of amino acid enhancing liquid, 2.8 parts of alginate enhancing liquid and 0.35 parts of brown algae oligosaccharide enhancing agent.

[0086] The production device of the quick-acting humic acid urea in this embodiment is the same as that in the embodiment 1, and will not be described in detail. The production method is the same as that in the embodiment 1, except that the water content in the additive solution in step 2 is 79%, the temperature of the additive solution in step 3 is 36°C, and the flow rate of the first flow meter 22 in step 4 is 452m 3 / h, the flow rate in the second flow meter 23 is 31.1m 3 / h.

[0087] Example 10

[0088] A fast-acting humic acid urea is prepared by comprising the following raw materials in parts by weight: 99 parts of urea, 1.5 parts of humic acid enhancing liquid, 0.3 parts of amino acid enhancing liquid, 2.8 parts of alginate enhancing liquid and 0.3 parts of brown algae oligosaccharide enhancing agent.

[0089] The production device of the quick-acting humic acid urea in this embodiment is the same as that in the embodiment 1, and will not be described in detail; the production method is the same as that in the embodiment 1, except that: the water content in the additive solution in step 2 is 80%, the temperature of the additive solution in step 3 is 40°C, and the flow rate of the first flow meter 22 in step 4 is 450m 3 / h, the flow rate in the second flow meter 23 is 31m 3 / h.

[0090] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0091] Test Example 1

[0092] Sample Example: Example 8 was randomly selected as the sample example. It was observed from the viewing mirror that the foaming reaction of the urea solution showed only a small amount of large bubbles, the reaction was slow, and the empty shell rate of the urea particles was 5.0%.

[0093] Comparative Example 1: Based on Example 8, the production method is as follows: humic acid enhancer liquid, amino acid enhancer liquid, alginate enhancer liquid and brown algae oligosaccharide enhancer are prepared into additive solutions, and the additive solutions are directly sent into the U-tube 2 to mix with the urea melt from the first evaporation tank 1; the foaming phenomenon is severe, the slurry volume expands by nearly 2 times, the slurry viscosity is high, overflow occurs, and the production cannot be operated normally.

[0094] Comparative Example 2: Based on Example 8, a fast-acting humic acid urea is prepared by the following methods: the fast-acting humic acid urea includes the following raw materials in parts by weight: 98 parts of urea and 1.6 parts of humic acid enhancing liquid; the production method is to directly feed the humic acid enhancing liquid into the U-shaped tube 2 to mix with the urea molten liquid from the first evaporation tank 1; it is observed from the sight glass that the bubbling reaction of the urea solution presents a large number of small bubbles, the reaction is violent, and the empty shell rate of the produced urea particles is 8.9%.

[0095] Comparative Example 3: Based on Example 8, the production method is as follows: humic acid enhancer, amino acid enhancer, alginic acid enhancer and brown algae oligosaccharide enhancer are prepared into additive solutions, the fourth valve 20 is adjusted to allow the additive solution to be mixed with the urea melt from the first evaporation tank 1 through the U-shaped tube 2, and the flow rate of the first flowmeter 22 is 449m 3 / h, the flow rate in the second flow meter 23 is 31.2m 3 / h; it was observed from the sight glass that the foaming reaction of urea solution showed that the number of small bubbles decreased and some large bubbles appeared, the reaction was reduced, and the empty shell rate of urea particles was 7.5%.

[0096] Comparative Example 4: Based on Example 8, the production method is as follows: humic acid enhancer liquid, amino acid enhancer liquid, alginate enhancer liquid and brown algae oligosaccharide enhancer are prepared into additive solutions, the water content in the additive solution is concentrated to 76%, and the concentrated additive solution is mixed with the urea melt from a first evaporation tank 1 through a U-shaped tube 2; it is observed from the sight glass that the foaming reaction of the urea solution shows that the number of small bubbles is reduced and some large bubbles are present, the reaction is reduced, and the empty shell rate of urea particles is 7.3%.

[0097] Comparative Example 5: Based on Example 8, the production method is as follows: humic acid enhancer liquid, amino acid enhancer liquid, alginate enhancer liquid and brown algae oligosaccharide enhancer are prepared into additive solutions, and the additive solution is mixed with the urea molten liquid from a first-stage evaporation tank 1 through a U-tube 2 at a temperature of 38°C; it is observed from the sight glass that the foaming reaction of the urea solution shows that the number of small bubbles is reduced and some large bubbles are present, the reaction is reduced, and the empty shell rate of urea particles is 7.6%.

[0098] Comparative Example 6: Based on Example 8, the production method is as follows: humic acid enhancer liquid, amino acid enhancer liquid, alginate enhancer liquid and brown algae oligosaccharide enhancer are prepared into additive solutions, a defoamer is added to the additive solution (dimethyl silicone oil is selected as the defoamer), and on this basis, the additive solution containing the defoamer is mixed with the urea melt from a first evaporation tank 1 through a U-shaped tube 2; it is observed from the sight glass that the foaming reaction of the urea solution shows that the number of small bubbles is reduced and there are some large bubbles, the reaction is reduced, and the empty shell rate of urea particles is 8.0%.

[0099] From the above comparison, it can be seen that the production method adopted in the present invention can reduce the cost of purchasing raw materials (no need to purchase defoaming agents), and at the same time can effectively reduce the empty shell rate of urea particles while ensuring the normal operation of the equipment, thereby achieving the characteristic of improving the quality of urea.

[0100] Test Example 2

[0101] Sample Example: Randomly select the fast-acting humic acid urea prepared in Example 9;

[0102] Comparative Example 1: The urea in Example 9 was selected alone;

[0103] Comparative Example 2: The enhanced urea prepared by using the urea and humic acid enhanced solution in Example 9;

[0104] Comparative Example 3: Enhanced urea prepared by using urea, humic acid enhancing liquid and alginic acid enhancing liquid in Example 9;

[0105] Comparative Example 4: Enhanced urea prepared by using urea, humic acid enhancing liquid, alginic acid enhancing liquid and amino acid enhancing liquid in Example 9;

[0106] Comparative Example 5: The enhanced urea prepared by using the urea, humic acid enhancing liquid and brown algae oligosaccharide enhancing agent in Example 9;

[0107] The above sample example, comparative example 1, comparative example 2, comparative example 3, comparative example 4 and comparative example 5, each group corresponds to 20m 2 Planting Shanghai Qing on the test field requires that the soil nutrients in all test fields are balanced and a unified field management model is adopted; the above six fertilizers are applied as topdressing at an application rate of 15kg / mu. The Shanghai Qing variety, green leaf Shanghai Qing, is fertilized during the five-leaf and one-heart period. The fertilization method is to spread the fertilizer evenly, and be careful not to spread it in the middle of the leaf heart, and drip irrigation is used. The relevant indicators are measured on the day of topdressing and 14 days later;

[0108] The bok choy harvested by applying the fertilizers of the above-mentioned comparative examples 1 to 5 and the sample example are respectively referred to as 1 to 5 and sample 1, and the statistical results are as follows:

[0109]

[0110] It can be concluded from the above table that ① on the day of fertilization, there was no significant difference in the growth of Shanghai Qing in all test cases, and the growth was uniform, which was more effective in comparing the fertilization effects of the test cases; ② 14 days after fertilization, all indicators of the test cases increased, and the Shanghai Qing of sample case showed obvious growth 14 days after fertilization, with the plant height and number of leaves increasing by 6.98 cm and 4.7 pieces respectively; ③ The growth of sample case was larger than that of test case 1 14 days after fertilization, and the plant height, number of leaves, chlorophyll and fresh weight of aboveground parts increased by 0.89 cm, 1.4 pieces, 1.86 and 3.72 g / plant respectively.

[0111] Molecular weight analysis was performed on the fertilizers in Test Examples 1 to 5 and Sample Example of the present invention. The fertilizers in Test Example 1 and Sample Example had changes in functional group distribution, and the hydrogen bond peak was higher than that of the original ordinary urea.

[0112] Combining the test results of the two varieties of Shanghai Qing, it was found that sample example and test example 4 performed outstandingly in terms of rapid effectiveness, and could promote the growth of Shanghai Qing plant height and leaf number, effectively improving quality indicators.

[0113] In order to study the nutrient changes after the fertilizers in Test Examples 1 to 5 and Sample Examples were applied to the soil, soil cultivation was adopted, and the specific implementation method is as follows:

[0114] A 260g device was used, and 250g of dry loam that had passed a 2mm sieve was loaded into it. No crops were planted, and the test example fertilizer was fully mixed with the soil. The test example fertilizer application rate was 50kg / mu, that is, 260g of soil was mixed with 0.086g of fertilizer, and the watering amount was 16% of the soil moisture content (appropriate soil moisture level), that is, the first watering amount was 41.6g. During the test, the weight of the device was weighed every three days and water was added to the appropriate soil moisture level.

[0115] For each test case fertilizer, 21 pots were set up according to the above operation, and soil was collected on the 1st, 3rd, 5th, 7th, 10th, 14th, and 21st day after fertilization, and three replicates of soil were collected from each test case each time.

[0116] Before fertilization, soil was collected to determine the ammonium nitrogen content, nitrate nitrogen content and pH value of the soil to check the soil nutrient content level; soil was collected on the 1st, 3rd, 5th, 7th, 10th, 14th and 21st day after fertilization to determine the ammonium nitrogen content and nitrate nitrogen content of the soil to check the nutrient changes; the three repeated measurements of each test case were used to calculate the mean value. The final statistical data are as follows:

[0117]

[0118] From the above data, it can be found that compared with Test Example 1, the ammonium nitrogen content of Sample Example increased on the first day after fertilization, and the ammonium nitrogen content of Sample Example on the 5th day increased by 45.2 mg / L compared with that of Test Example 1, and the ammonium nitrogen content of Sample Example on the 7th day increased by 76.9 mg / L compared with that of Test Example 1, indicating that the urea conversion of Sample Example was faster than that of Test Example 1, and the amide nitrogen was converted into ammonium nitrogen; the nitrate nitrogen content of Sample Example on the 5th day increased by 7.9 mg / L compared with that of Test Example 1, and the nitrate nitrogen content of Sample Example on the 7th day increased by 30.3 mg / L compared with that of Test Example 1, that is, as the amide nitrogen was converted into ammonium nitrogen, part of the ammonium nitrogen began to be converted into nitrate nitrogen. , and the content of ammonium nitrogen in sample case increased by 30.3 mg / L compared with that in test case 1; on the 10th day of the test, the content of ammonium nitrogen in the soil began to decrease and the content of nitrate nitrogen increased significantly, indicating that urea had been completely converted into fast-acting nitrogen, and the conversion of ammonium nitrogen to nitrate nitrogen reached a peak; on the 10th day, the content of ammonium nitrogen in sample case increased by 40.1 mg / L and the content of nitrate nitrogen increased by 17.1 mg / L compared with that in test case 1; on the 14th and 21st days of the test, the content of nitrate nitrogen increased and the content of ammonium nitrogen decreased, but the overall content of nitrate nitrogen and ammonium nitrogen in sample case were higher than those in test case 1, indicating that the content of fast-acting nitrogen in sample case was high and fast-acting could be achieved, which was consistent with the conclusion of the Shanghai Qing test.

[0119] In order to further study the differences between the sample example and the test example 4, the structure of the additives in the product of the test example 4 and the sample example was analyzed by indoor infrared spectroscopy:

[0120] refer to Figure 2 and Figure 3 By comparing the infrared spectra of the additives in the products of Test Example 4 and Sample Example, it was found that the humic acid enhancer in Test Example 4 had three peaks at 1200-1000, and it was inferred that 1200 and 1050 were the peaks of the sulfonic acid group, while the mixed enhancer in Sample Example had one peak at 1200-1000. After comparing the theoretical calculation with the actual measurement curve, the main difference was that the absorption peak of the sulfonic acid group at 1050 became stronger. Therefore, when analyzing the reaction between the humic acid enhancer and the alginate enhancer, the amino acid enhancer, and the brown algae oligosaccharide, the hydrophilic group sulfonic acid group of the humic acid may react, making its polarity stronger and the absorption peak higher, thereby affecting the urea conversion and achieving rapid effect.

[0121] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fast-acting humic acid urea, characterized in that: The quick-acting humic acid urea is prepared from the following raw materials in parts by weight: 97-100 parts of urea, 1-1.8 parts of humic acid enhancing liquid, 0.1-0.3 parts of amino acid enhancing liquid, 1-3 parts of alginate enhancing liquid and 0.2-0.6 parts of brown algae oligosaccharide enhancing agent.

2. A fast-acting humic acid urea according to claim 1, characterized in that: The fast-acting humic acid urea is prepared from the following raw materials in parts by weight: 98-100 parts of urea, 1.2-1.8 parts of humic acid enhancing liquid, 0.1-0.3 parts of amino acid enhancing liquid, 2-3 parts of alginate enhancing liquid and 0.2-0.4 parts of brown algae oligosaccharide enhancing agent.

3. A fast-acting humic acid urea according to claim 2, characterized in that: The fast-acting humic acid urea is prepared from the following raw materials in parts by weight: 98-99 parts of urea, 1.2-1.6 parts of humic acid enhancing liquid, 0.2-0.3 parts of amino acid enhancing liquid, 2.6-3 parts of alginate enhancing liquid and 0.3-0.4 parts of brown algae oligosaccharide enhancing agent.

4. A fast-acting humic acid urea according to claim 3, characterized in that: The fast-acting humic acid urea is prepared by including the following raw materials in parts by weight: 99 parts of urea, 1.5 parts of humic acid enhancing liquid, 0.3 parts of amino acid enhancing liquid, 2.8 parts of alginate enhancing liquid and 0.3 parts of brown algae oligosaccharide enhancing agent.

5. A production device for quick-acting humic acid urea, characterized in that: The production device comprises a urea production system, wherein the urea production system comprises at least one evaporation tank (1), wherein the outlet of the first evaporation tank (1) is connected to the inlet of the second evaporation tank (3) via a U-shaped tube (2), and the outlet of the second evaporation tank (3) is connected to a granulation nozzle (5) in a granulation tower via a first flow meter (22) and a urea melting pump (4); The U-shaped tube (2) is provided with a tee, and the third end of the tee is connected to the additive adding unit; The additive adding unit comprises at least a dissolving part, and the dissolving part is connected to the third end of the tee through a concentration part, a cooling part and a second flow meter (23).

6. The production device of a quick-acting humic acid urea according to claim 4, characterized in that: The dissolving part comprises a dissolving tank (6), the dissolving tank (6) is provided with a desalted water inlet (7) and an additive inlet (8), the lower part of the dissolving tank (6) is provided with a dissolving tank outlet pipe (9) connected to the concentration part, and the dissolving tank outlet pipe (9) is provided with a first valve (10).

7. A production device for quick-acting humic acid urea according to claim 5 or 6, characterized in that: The concentration section comprises a concentration tank (11), a steam coil (12) is arranged outside the concentration tank (11), a concentration tank outlet pipe (14) with a second valve (13) and a concentration tank sampling pipe (16) with a third valve (15) are arranged on one side of the lower part of the concentration tank (11).

8. The production device of a quick-acting humic acid urea according to claim 5, characterized in that: The cooling part comprises a cooling tank (17) and a circulating cooling water coil (18) arranged outside the cooling tank (17); a temperature sensor (19) is arranged inside the cooling tank (18); a cooling tank outlet pipe (21) with a fourth valve (20) is arranged at the lower part of the cooling tank (17); and the concentration tank outlet pipe (21) is connected to the third end of the tee through a second flow meter (23).

9. A method for producing quick-acting humic acid urea, characterized in that: The production method comprises the following steps: Step 1: Humic acid enhancing liquid, amino acid enhancing liquid, alginic acid enhancing liquid and brown algae oligosaccharide enhancing agent enter the dissolution tank (6) through the additive inlet (8) in proportion, desalted water enters the dissolution tank (6) through the desalted water inlet (7), and the desalted water is mixed and dissolved with the above-mentioned additives to prepare an additive solution; Step 2: the additive solution is passed through the outlet pipe (9) of the dissolving tank into the concentration tank (11) for concentration. The concentration process is as follows: steam is introduced into the steam coil (12) to heat the material in the additive solution, and the water evaporates after heating to reduce the water content in the additive solution; and the concentration tank sampling pipe (16) through the third valve (15) is sampled to detect the water content; Step 3: When the water content in the additive solution in step 2 reaches a preset threshold value, the additive solution with a qualified water content is allowed to enter the cooling tank (17) through the outlet pipe (14) of the concentration tank with the second valve (13) for cooling. The cooling process is as follows: circulating cooling water exchanges heat with the additive solution through the circulating cooling water coil (18) for cooling, and the temperature of the additive solution in the cooling tank (17) is detected by the temperature sensor (19); Step 4: When the temperature of the additive solution in step 3 meets the preset threshold value, the fourth valve (20) is opened to allow the additive solution to enter the U-shaped tube (2) and mix with the urea melt from the first stage evaporation tank (1); the mixed material passes through the second stage evaporation tank (3), the first flow meter (22) and the urea melt pump (4) and then enters the granulation nozzle (5) in the granulation tower for granulation; the process of mixing the additive solution and the urea melt is as follows: the additive solution is determined according to the amount of the urea melt, and is monitored by the second flow meter (23), and the flow rate is regulated by the fourth valve (20).

10. The method for producing quick-acting humic acid urea according to claim 9, characterized in that: The water content of the additive solution in step 2 is not more than 80%, the temperature of the additive solution in step 3 is not higher than 40° C., and the flow rate of the first flow meter (22) in step 4 is 445-455 m / s. 3 / h, the flow rate in the second flow meter (23) is 30.5-31.5m 3 / h.

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