Preparation device of humic acid-containing water-soluble bacterial fertilizer capable of promoting growth and increasing yield

Abstract

The utility model discloses a preparation device of a humic acid-containing water-soluble bacterial fertilizer capable of promoting growth and increasing yield. The preparation device of the humic acid-containing water-soluble bacterial fertilizer capable of promoting growth and increasing yield comprises a tank body, a cover plate which is arranged at the opening position of the tank body and is matched with the tank body for use, a feed port and a vertically arranged driving motor which are arranged on the cover plate, and a vertically arranged stirring shaft which is arranged in the tank body and is connected with the driving motor, a six-arrow-blade disc turbine stirrer and a three-blade wheel stirrer which are respectively positioned in the middle of the stirring shaft and at the bottom of the stirring shaft are distributed on the stirring shaft. Stirring and mixing of mineral source potassium humate, urea, potassium pyrophosphate, potassium nitrate, monopotassium phosphate, orthophosphoric acid, Tween 80, sodium carboxymethyl cellulose, propylene glycol, bacillus amyloliquefaciens subsp. Plantarum thallus coating liquid and water are fully realized by utilizing a six-arrow-leaf disc turbine stirrer and a three-blade wheel stirrer on a stirring shaft; and obtaining the humic acid-containing water-soluble bacterial fertilizer at a preset temperature.

Description

Technical Field

[0001] The utility model relates to a preparation device for a water-soluble bacterial fertilizer containing humic acid for promoting growth and increasing production, in particular to a preparation device for a water-soluble bacterial fertilizer containing humic acid for promoting growth and increasing production with a compact structure and sufficient stirring. Background Art

[0002] Humic acid-containing water-soluble fertilizers (NY 1106-2010) are a new type of fertilizer proposed and categorized by the Ministry of Agriculture. These liquid or solid water-soluble fertilizers are made from mineral-based humic acid in proportions suitable for plant growth, supplemented with appropriate amounts of nitrogen, phosphorus, and potassium, or trace elements such as copper, iron, manganese, zinc, boron, and molybdenum. Mineral-based humic acid is formed from plant and animal residues through a series of processes, including microbial decomposition, transformation, and geochemical reactions. It is extracted from mud, lignite, or wind-blown coal and is a mixture of amorphous polymer compounds containing benzene nuclei, carboxyl groups, and phenolic hydroxyl groups. Humic acid raw materials are widely available, green and natural, with complex and diverse beneficial functional groups inside. It has direct or indirect biological activity and can regulate the acid-base balance of the soil in agricultural planting, especially promote the division and elongation of root cells. It can be compounded with macroelements and trace elements to enhance each other's synergy. Water-soluble fertilizers containing humic acid have a high effective absorption rate and fast fertilizer effect. At present, there are clear fertilizer effect experimental reports on crops such as peppers, cabbage, tomatoes, and rice at home and abroad (see China National Knowledge Infrastructure "Water-soluble fertilizers containing humic acid"), which will not be elaborated here.

[0003] The preparation of water-soluble fertilizer containing humic acid and the use of special equipment for preparation, aiming at the full crushing, dissolution and mixing of the bacterial coating liquid in the new process, ensures that the bacterial agent in the final prepared water-soluble fertilizer containing humic acid can survive stably in the hypertonic solution, and specially studies the preparation device of the utility model for implementation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device for preparing water-soluble bacterial fertilizer containing humic acid for promoting plant growth and increasing production, which has the characteristics of compact structure and sufficient stirring.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a preparation device for a water-soluble bacterial fertilizer containing humic acid that promotes growth and increases production, and its innovation lies in: the preparation device for a water-soluble bacterial fertilizer containing humic acid that promotes growth and increases production includes a tank body, a cover plate arranged at an opening position on the tank body and assembled with the tank body, a feed port and a vertically arranged drive motor arranged on the cover plate, and a stirring shaft arranged in the tank body and connected to the drive motor and vertically arranged, and a six-arrow-blade disc turbine agitator and a three-impeller agitator are distributed on the stirring shaft, which are respectively located in the middle and bottom of the stirring shaft.

[0006] Preferably, the six-arrow-blade disc turbine agitator includes a disc with a sheet-like structure sleeved on the agitator shaft, and a plurality of arrow-blade agitating blades arranged on the disc. The disc is arranged perpendicular to the central axis of the agitator shaft, and the plurality of arrow-blade agitating blades are evenly distributed around the disc.

[0007] Preferably, the arrow-blade stirring blade is composed of two pieces of a first unit and a second unit in the shape of an open book, one side of the first unit and the second unit is welded on the disc, and the other side of the first unit and the other side of the second unit are symmetrically distributed above and below the disc.

[0008] Preferably, both the first unit and the second unit are curved structures;

[0009] The angle between the first unit and the second unit is 20-60 degrees.

[0010] Preferably, the three-impeller agitator consists of three fan-shaped blades, and there is an inclination angle of 5-20 degrees between the fan-shaped blades and the horizontal plane.

[0011] Preferably, the tank body is provided with a control panel located on the side of the tank body and a discharge port located at the bottom of the tank body;

[0012] The discharge port is provided with a switch for closing or opening the discharge channel.

[0013] Preferably, the tank body is provided with a pH meter and a thermometer which extend into the tank body and respectively provide signal feedback to the control panel.

[0014] Preferably, a water inlet pipe connected to the tank body after the hot water pipe and the cold water pipe merge is provided on the tank body at the bottom of the tank body, and a first temperature sensing valve and a second temperature sensing valve are provided on the hot water pipe and the cold water pipe respectively, and the first temperature sensing valve and the second temperature sensing valve respectively provide signal feedback to the thermometer;

[0015] The pH meter and the thermometer are both provided with stainless steel electrode protection sleeves.

[0016] Preferably, the cover plate is provided with a bracket for mounting the drive motor;

[0017] The tank body is provided with a visual window with volume scale located on the side of the tank body;

[0018] At least three supporting legs are provided on the bottom of the tank body, and one end of each supporting leg away from the tank body is fixedly connected to the bottom plate.

[0019] The advantages of the utility model are that: by adopting the above structure, the utility model utilizes the six-blade disc turbine agitator and the three-impeller agitator on the stirring shaft to fully achieve stirring and mixing of mineral source potassium humate, urea, potassium pyrophosphate, potassium nitrate, potassium dihydrogen phosphate, orthophosphoric acid, Tween 80, sodium carboxymethyl cellulose, propylene glycol, Bacillus amyloliquefaciens plant subspecies bacterial coating liquid and water, and obtains humic acid-containing water-soluble bacterial fertilizer at a preset temperature.

[0020] The water-soluble bacterial fertilizer containing humic acid adopts a high-temperature-stirring-emulsification process, which greatly increases the concentration of mineral-source potassium humate, which is 3-5 times the humic acid concentration of similar products on the market; at the same time, by multi-layer coating of the bacteria, the bacterial agent can survive stably in a hypertonic solution, filling the gap in water-soluble bacterial fertilizer containing humic acid; the water-soluble bacterial fertilizer containing humic acid prepared by the utility model has a small dosage and is easy to use; compared with the control group, it can significantly increase soil enzyme activity, promote the development of crop capillary roots, and significantly improve crop yield and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is a structural schematic diagram of a preparation device of a water-soluble bacterial fertilizer containing humic acid for promoting growth and increasing yield.

[0022] Figure 2 The utility model is a schematic diagram of the internal structure of a preparation device of a water-soluble bacterial fertilizer containing humic acid for promoting growth and increasing yield.

[0023] Figure 3 The utility model is a structural schematic diagram of a stirring shaft, a six-arrow-blade disc turbine stirrer and a three-impeller stirrer in a preparation device of a water-soluble bacterial fertilizer containing humic acid for promoting growth and increasing yield.

[0024] In the figure: 1-tank body, 2-cover, 3-feed port, 4-drive motor, 5-stirring shaft, 6-control panel, 7-discharge port, 8-pH meter, 9-thermometer, 10-hot water pipe, 11-cold water pipe, 12-first temperature sensing valve, 13-second temperature sensing valve, 14-bracket, 15-six-arrow-blade disc turbine agitator, 151-disc, 152-arrow-blade stirring blade, 1521-first unit, 1522-second unit, 16-three-impeller agitator, 17-switch, 18-viewing window, 19-support leg. DETAILED DESCRIPTION

[0025] The present invention provides a preparation device for a water-soluble bacterial fertilizer containing humic acid that promotes growth and increases yield. The device comprises a tank body 1, a cover plate 2 disposed at an opening on the tank body 1 and assembled with the tank body 1, a feed port 3 disposed on the cover plate 2, a vertically mounted drive motor 4, and a vertically mounted stirring shaft 5 disposed within the tank body 1 and connected to the drive motor 4. The stirring shaft 5 is provided with a six-blade disc turbine agitator 15 and a three-impeller agitator 16, respectively located in the middle and bottom portions of the stirring shaft 5. By adopting the above-described structure, the present invention utilizes the six-blade disc turbine agitator 15 and the three-impeller agitator 16 on the stirring shaft 5 to fully agitate and mix mineral-source potassium humate, urea, potassium pyrophosphate, potassium nitrate, potassium dihydrogen phosphate, orthophosphoric acid, Tween 80, sodium carboxymethyl cellulose, propylene glycol, a Bacillus amyloliquefaciens subsp. plantarum cell coating solution, and water, thereby producing a water-soluble bacterial fertilizer containing humic acid at a preset temperature.

[0026] The six-arrow-blade disc turbine agitator 15 comprises a disc 151 with a sheet-like structure that is sleeved on the agitator shaft 5, and a plurality of arrow-blade agitating blades 152 mounted on the disc 151. The disc is arranged perpendicular to the central axis of the agitator shaft 5, and the plurality of arrow-blade agitating blades 152 are evenly distributed around the disc 151. The arrow-blade agitating blades 152 are composed of two open book-shaped first and second units 1521, 1522. One side of the first and second units 1521, 1522 is welded to the disc 151, and the other side of the first and second units 1521, 1522 are symmetrically distributed above and below the disc 151. The first and second units 1521, 1522 both have curved structures; the angle between the first and second units 1521, 1522 is between 20 and 60 degrees.

[0027] The three-impeller agitator 16 comprises three fan-shaped blades, each inclined at an angle of 5-20 degrees to the horizontal. The tank 1 is provided with a control panel 6 located on the side of the tank 1 and a discharge port 7 located at the bottom of the tank 1. The discharge port 7 is equipped with a switch 17 for closing or opening the discharge channel. To provide real-time feedback on pH and temperature, the tank 1 is equipped with a pH meter 8 and a thermometer 9, which extend into the tank 1 and provide signal feedback to the control panel 6.

[0028] The tank body 1 is provided with a water inlet pipe at the bottom thereof, which connects to the tank body 1 after the hot water pipe 10 and the cold water pipe 11 merge. The hot water pipe 10 and the cold water pipe 11 are respectively provided with a first temperature sensing valve 12 and a second temperature sensing valve 13, which respectively provide signal feedback to the thermometer 9. When the temperature exceeds the set temperature range, the cold water or hot water switch 17 is automatically opened to cool down or heat up the water. When the temperature and pH remain within the appropriate range, the bacterial solution can be added to ensure that the added bacterial strain can survive and maintain good vitality in the high-concentration humic acid liquid. To ensure the pH meter 8 and thermometer 9's resistance to medium corrosion, both are equipped with stainless steel electrode protective sleeves.

[0029] The above-mentioned cover plate 2 is provided with a bracket 14 for installing the drive motor 4; the tank body 1 is provided with a visual window 18 with a volume scale located on the side of the tank body 1; at least three support legs 19 are provided on the bottom of the tank body 1, and the ends of the support legs 19 away from the tank body 1 are fixedly connected to the bottom plate.

[0030] The utility model discloses a water-soluble bacterial fertilizer containing humic acid for promoting plant growth and increasing yield, comprising 15-50 parts by weight of mineral-source potassium humate, 10-30 parts by weight of urea, 3-10 parts by weight of potassium pyrophosphate, 2-8 parts by weight of potassium nitrate, 2-8 parts by weight of potassium dihydrogen phosphate, 2-8 parts by weight of orthophosphoric acid, 0.5-5 parts by weight of Tween 80, 0.5-3 parts by weight of sodium carboxymethyl cellulose, 1-5 parts by weight of propylene glycol, 10-30 parts by weight of Bacillus amyloliquefaciens subspecies plantarum cell coating solution, and 50-100 parts by weight of water. The strain number of the Bacillus amyloliquefaciens subspecies plantarum is CICC 21168.

[0031] The utility model greatly increases the concentration of mineral-source potassium humate through a high-temperature-stirring-emulsification process, which is 3-5 times the humic acid concentration of similar products on the market; at the same time, by multi-layer coating of the bacteria, the bacterial agent can survive stably in a hypertonic solution, filling the gap in water-soluble bacterial fertilizers containing humic acid; the water-soluble bacterial fertilizer containing humic acid prepared by the utility model has a small dosage and is easy to use; compared with the control group, it can significantly increase soil enzyme activity, promote the development of crop capillary roots, and significantly improve crop yield and quality.

[0032] The preparation method of a water-soluble bacterial fertilizer containing humic acid for promoting plant growth and increasing yield comprises the following steps:

[0033] Step S1: preparing a nutrient broth culture medium in a fermentation tank, sterilizing it under high temperature and high pressure, and then inoculating it with Bacillus amyloliquefaciens subsp. plantarum, and fermenting it at 35° C. for 20 hours to obtain a fermentation liquid;

[0034] Step S2: The fermentation liquid in the fermentation tank in step S1 is centrifuged and dehydrated using a disc centrifuge;

[0035] Step S3: adding Tween 80 and propylene glycol in the above weight ratio to the bacterial sludge, and mixing evenly to uniformly disperse the bacterial cells to form a bacterial coating solution;

[0036] Step S4: adding water in the above weight proportion to the preparation device, and sequentially adding the above weight proportions of mineral source potassium humate, urea, potassium pyrophosphate, potassium nitrate, and potassium dihydrogen phosphate, and heating and stirring for 40 minutes in a sealed manner at a heating temperature of 50°C-70°C. After stirring, adding orthophosphoric acid in the above weight proportion, adjusting the pH to 7.5, and cooling to room temperature to obtain a coolant;

[0037] Step S5: adding the above-mentioned sodium carboxymethyl cellulose in the weight proportion to the cooling liquid, and emulsifying using a high-speed shear emulsifier to obtain an emulsion;

[0038] Step S6: adding the bacterial coating solution obtained in step S3 to the emulsion obtained in step S5, stirring for 10-20 minutes to obtain a water-soluble bacterial fertilizer containing humic acid.

[0039] The Bacillus amyloliquefaciens plantarum subspecies in step S1 is derived from the College of Food Science and Engineering of China Agricultural University and is currently deposited in the China Industrial Microbiological Culture Collection Center with the deposit number CICC21168. The strain characteristics are: rod-shaped, G+, forms oval endospores, is aerobic, can tolerate 1%-7% NaCl concentration of glucose, sucrose, maltose, galactose, and trehalose to produce acid, lactose, fructose, mannitol, raffinose, and xylose do not produce acid, do not decompose starch, and are catalase and oxidase positive.

[0040] In the above step S1, the sterilization temperature is 121° C. and the sterilization time is 15 minutes; in step S2, the speed of the disc centrifuge is 1000 r / min; in step S5, the emulsification time of the high-speed shear emulsifier is 20 minutes; and in step S6, the stirring speed of the mixer is 200 r / min.

[0041] The above embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the concept of the present invention, and these variations and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A device for preparing a water-soluble fertilizer containing humic acid for promoting plant growth and increasing production, characterized in that: The preparation device of the water-soluble bacterial fertilizer containing humic acid that promotes growth and increases yield includes a tank body, a cover plate arranged at an opening position on the tank body and assembled with the tank body, a feed port and a vertically arranged drive motor arranged on the cover plate, and a stirring shaft arranged in the tank body and connected to the drive motor and vertically arranged. The stirring shaft is distributed with a six-arrow-blade disc turbine agitator and a three-impeller agitator located in the middle and bottom of the stirring shaft respectively.

2. The device for preparing a water-soluble fertilizer containing humic acid for promoting plant growth and increasing yield as claimed in claim 1, characterized in that: The six-arrow-blade disc turbine agitator includes a disc with a sheet structure mounted on the agitator shaft and a plurality of arrow-blade agitating blades arranged on the disc. The disc is arranged perpendicular to the central axis of the agitator shaft, and the plurality of arrow-blade agitating blades are evenly distributed around the disc.

3. The device for preparing a water-soluble fertilizer containing humic acid for promoting plant growth and increasing yield as claimed in claim 2, characterized in that: The arrow-blade stirring blade is composed of two first units and a second unit in the shape of an open book. One side of the first unit and the second unit is welded on the disc, and the other side of the first unit and the other side of the second unit are symmetrically distributed above and below the disc.

4. The device for preparing a water-soluble fertilizer containing humic acid for promoting plant growth and increasing yield as claimed in claim 3, characterized in that: Both the first unit and the second unit have curved surface structures; The angle between the first unit and the second unit is 20-60 degrees.

5. The device for preparing a water-soluble bacterial fertilizer containing humic acid for promoting plant growth and increasing yield according to claim 1, characterized in that: The three-impeller agitator consists of three fan-shaped blades, and there is an inclination angle of 5-20 degrees between the fan-shaped blades and the horizontal plane.

6. The device for preparing a water-soluble bacterial fertilizer containing humic acid for promoting plant growth and increasing yield according to claim 1, characterized in that: The tank body is provided with a control panel located on the side of the tank body and a discharge port located at the bottom of the tank body; The discharge port is provided with a switch for closing or opening the discharge channel.

7. The device for preparing a water-soluble bacterial fertilizer containing humic acid for promoting plant growth and increasing yield according to claim 6, characterized in that: The tank body is provided with a pH meter and a thermometer which extend into the tank body and respectively provide signal feedback to the control panel.

8. The device for preparing a water-soluble bacterial fertilizer containing humic acid for promoting plant growth and increasing yield according to claim 7, characterized in that: The tank body is provided with a water inlet pipe connected to the tank body after the hot water pipe and the cold water pipe merge, and the hot water pipe and the cold water pipe are respectively provided with a first temperature sensing valve and a second temperature sensing valve, and the first temperature sensing valve and the second temperature sensing valve are respectively fed back to the thermometer signal; The pH meter and the thermometer are both provided with stainless steel electrode protection sleeves.

9. The device for preparing a water-soluble bacterial fertilizer containing humic acid for promoting plant growth and increasing yield according to claim 1, characterized in that: The cover plate is provided with a bracket for mounting the drive motor; The tank body is provided with a visual window with volume scale located on the side of the tank body; At least three supporting legs are provided on the bottom of the tank body, and one end of the supporting legs away from the tank body is fixedly connected to the bottom plate.

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