Production process of anhydrous liquid composite microbial fertilizer coated with water-soluble film

Abstract

This invention belongs to the field of fertilizer mixing technology, specifically providing a production process for anhydrous liquid compound microbial fertilizer using a water-soluble film coating. The process includes: preparing a basic mixture A; preparing mixture B after adding microorganisms; and preparing mixture C after adding nutrients. First, a thickener is added to sorbitol to prepare basic mixture A, ensuring its viscosity reaches the required level. This provides a good foundation for the subsequent addition of microorganisms and nutrients, thus solving the problem of poor mixing degree in the anhydrous liquid compound microbial fertilizer caused by mixing all components together. Simultaneously, due to the addition of a thickener, to prevent fertilizer from adhering to the inner wall of the mixing tank during stirring, the mixer alternates between a first speed and a second speed. At the first speed, stirring is performed; at the second speed, material adhering to the inner wall of the mixing tank is scraped off, thereby increasing the mixing degree of the anhydrous liquid compound microbial fertilizer.

Description

Technical Field

[0001] The invention belongs to the technical field of fertilizer mixing, and specifically relates to microbial fertilizers, and in particular to a production process of anhydrous liquid composite microbial fertilizers coated with a water-soluble film. Background Art

[0002] Compound microbial fertilizer is a fertilizer product that combines organic matter, inorganic nutrients and beneficial microbial flora.

[0003] In order to improve the physical properties of fertilizers, thickeners need to be added to compound microbial fertilizers to make it easier to form stable particles in the soil, thereby reducing nutrient loss and improving the durability and stability of fertilizers.

[0004] In the related art, various materials for preparing the composite microbial fertilizer are added together into a mixer for stirring. During the preparation process, due to the addition of a thickener, the viscosity of the composite microbial fertilizer gradually increases during stirring. Due to the different viscosities of each part, the composite microbial fertilizer is mixed unevenly, which affects the quality and effect of the fertilizer. If the stirring time is increased to solve the problem of uneven mixing, the fertilizer will be over-stirred and lumps will be generated.

[0005] Therefore, how to reduce the influence of adding thickener on the mixing degree of compound microbial fertilizer is a technical problem that needs to be solved urgently.

[0006] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention

[0007] The embodiments of the present disclosure at least provide a production process of anhydrous liquid composite microbial fertilizer coated with a water-soluble film.

[0008] In a first aspect, the present disclosure provides a process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film, the process comprising:

[0009] Prepare a basic mixture A by stirring sorbitol and a thickener with a blender;

[0010] Adding microorganisms to the basic mixture A and continuing stirring to prepare a mixture B;

[0011] Adding the nutrient elements to the mixture B and continuing to stir to prepare a mixture C;

[0012] The prepared mixture C is injected into a packaging machine and the water-soluble film is packaged using the water-soluble film;

[0013] The mixer stirs alternately at a first speed and a second speed, and at the first speed, stirring is performed, and at the second speed, the material adhering to the inner wall of the stirring tank is scraped off, thereby increasing the mixing degree of the anhydrous liquid compound microbial fertilizer, and the first speed is greater than the second speed.

[0014] In an optional embodiment, the step of preparing the basic mixture A by stirring sorbitol and a thickener by a stirrer comprises:

[0015] Put 60-65 parts of sorbitol, 0.1-0.2 parts of thickener and 2-3 parts of water retaining agent into a blender and stir at 20-25°C for 20-30 minutes.

[0016] In an optional embodiment, the step of adding microorganisms to the basic mixture A and continuing to stir to prepare the mixture B comprises:

[0017] 1.5-2 parts of mycorrhizal fungi and 3-4 parts of Bacillus subtilis are placed in a blender with the prepared basic mixture A, and stirred at a temperature of 20-25° C. for 15-20 minutes.

[0018] In an optional embodiment, the nutrient elements are added to the mixture B and then stirred to prepare the mixture C;

[0019] Put 15-18 parts of 50% mineral fulvic acid and 10-12 parts of nutrient elements into the blender with the prepared mixture B, and stir at 40-50°C for 30-40 minutes;

[0020] Among them, the nutrient elements are one or a combination of two or more of nitrogen, phosphorus and potassium.

[0021] In an optional embodiment, the mixer comprises: a control module, a driving mechanism, a stirring tank, a stirring shaft and a stirring mechanism;

[0022] The stirring mechanism is arranged on the stirring shaft and is arranged in the stirring tank;

[0023] The driving mechanism is suitable for driving the stirring shaft to rotate, thereby driving the stirring mechanism to rotate;

[0024] The stirring mechanism comprises:

[0025] Agitator paddle and scraper assembly;

[0026] The stirring paddle is connected to the stirring shaft;

[0027] The scraper assembly is arranged on the stirring paddle;

[0028] The control module is configured to drive the driving mechanism to work alternately at a first speed and a second speed;

[0029] When the driving mechanism drives the stirring shaft to rotate at a first speed, the scraper assembly is separated from the side wall and the bottom wall of the stirring tank; when the driving mechanism drives the stirring shaft to rotate at a second speed, the scraper assembly is abutted against the side wall and the bottom wall of the stirring tank.

[0030] In an optional embodiment, the scraper assembly includes: a lifting plate, a plurality of first scraper members, a plurality of second scraper members, and a plurality of limit plates;

[0031] The stirring paddle includes a plurality of blades;

[0032] One end of each blade away from the stirring shaft extends upwardly out of the mounting plate along the axial direction of the stirring shaft;

[0033] The first scraper is arranged on the corresponding blade of the stirring paddle, and the second scraper is arranged on the corresponding mounting plate;

[0034] One end of each of the limit plates abuts against the corresponding first scraper or second scraper, and the other end is connected to the lifting plate;

[0035] When the lifting plate rises, the limit plate is driven to rise to release the restriction on the first scraper and the second scraper. The first scraper and the second scraper are abutted against the bottom wall and the side wall of the mixing tank under the action of centrifugal force.

[0036] When the lifting plate descends, the limiting plate is driven to insert the scraper, so that the first scraper and the second scraper are separated from the bottom wall and the side wall of the mixing tank.

[0037] In an optional embodiment, the first scraper comprises:

[0038] A first connecting frame, a first scraping portion, and a first abutting portion;

[0039] The first connection frame is arranged on the blade;

[0040] The first scraping portion is connected to the first abutting portion;

[0041] The scraping surface of the first scraping portion passes through the first connecting frame and is arranged toward the bottom wall of the stirring tank;

[0042] The first abutting portion abuts against the corresponding limiting plate.

[0043] In an optional embodiment, the second scraper comprises:

[0044] a second connecting frame, a second scraping part, and a second abutting part;

[0045] The second connecting frame is arranged on the mounting plate;

[0046] The second scraping part is connected to the second abutting part;

[0047] The scraping surface of the second scraping part faces the side wall of the mixing tank after passing through the second connecting frame;

[0048] The second abutting part abuts against the corresponding limiting plate.

[0049] In an alternative embodiment, the distances between the plurality of first scraping members and the mixing shaft are different;

[0050] The plurality of second scraping members are arranged at different heights on the corresponding mounting plate.

[0051] In an alternative embodiment, the lifting disc includes:

[0052] a liquid limiting ring, a lifting ring, a lifting cylinder, a clamping ring, and a floating foam collecting part;

[0053] The lifting ring is arranged above the liquid limiting ring and is connected to the liquid limiting ring through a connecting plate;

[0054] The lifting ring and the liquid limiting ring are concentrically arranged;

[0055] The limiting plate is arranged below the liquid limiting ring and is connected to the liquid limiting ring;

[0056] The lifting cylinder is arranged in the driving mechanism, and the clamping ring is sleeved on the piston rod of the lifting cylinder;

[0057] The outer wall of the clamping ring is in a U shape;

[0058] The inner wall of the lifting ring is clamped with the outer wall of the clamping ring;

[0059] The lifting cylinder is adapted to drive the clamping ring to lift, so as to drive the lifting ring to lift;

[0060] The floating foam collecting part is arranged below the liquid limiting ring and is provided with a through hole adapted to the mixing shaft;

[0061] The control module is further configured to control the lifting cylinder to lift the floating foam collecting part above the liquid in the mixing tank when driving the driving mechanism to work at the first rotation speed or the second rotation speed;

[0062] The control module is also configured to control the driving mechanism to stop working before switching from the first speed to the second speed, and then drive the lifting cylinder to drive the foam collecting part to descend to the bottom of the liquid in the stirring tank, and then drive the limit plate to rise to release the restriction on the first scraper and the second scraper, so that the first scraper and the second scraper are abutted against the bottom wall and the side wall of the stirring tank under the action of centrifugal force. At this time, the driving mechanism is controlled to drive the stirring shaft to rotate at the second speed, so that the foam in the foam collecting part passes through the crushing hole at the bottom of the foam collecting part under the action of centrifugal force and is crushed.

[0063] The beneficial effect of the present invention is that the production process of the anhydrous liquid composite microbial fertilizer coated with a water-soluble film is divided into the preparation of three mixtures. The thickener is first added to sorbitol to prepare a basic mixture A, and the viscosity of the basic mixture A reaches the required viscosity, providing a good basis for the subsequent addition of microorganisms and nutrients, thereby solving the problem of poor mixing degree of the anhydrous liquid composite microbial fertilizer caused by stirring all the components together. At the same time, due to the addition of the thickener, in order to prevent the anhydrous liquid composite microbial fertilizer from adhering to the inner wall of the stirring tank during stirring, the mixer is stirred alternately at a first speed and a second speed. At the first speed, stirring is performed, and at the second speed, the material adhering to the inner wall of the stirring tank is scraped off, thereby increasing the mixing degree of the anhydrous liquid composite microbial fertilizer.

[0064] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0065] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, this article specifically cites preferred embodiments and provides detailed descriptions as follows in conjunction with the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0067] Figure 1 A flow chart of a process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film provided in an embodiment of the present disclosure;

[0068] Figure 2A schematic diagram of the structure of a mixer provided in an embodiment of the present disclosure;

[0069] Figure 3 A cross-sectional view of a mixer provided in accordance with an embodiment of the present disclosure;

[0070] Figure 4 A schematic diagram of a partial structure of a mixer provided in an embodiment of the present disclosure.

[0071] Figure 5 A structural schematic diagram of a partial structure of the mixer provided in an embodiment of the present disclosure from another perspective.

[0072] In the figure: 100, driving mechanism; 200, stirring tank; 300, stirring shaft; 400, stirring mechanism; 410, stirring paddle; 411, blade; 412, mounting plate; 420, scraper assembly; 421, lifting plate; 4211, liquid limiting ring; 4212, lifting ring; 4213, lifting cylinder; 4214, clamping ring; 4215, froth collecting part; 4216, connecting plate; 422, first scraper member; 4221, first connecting frame; 4222, first scraper part; 4223, first abutting part; 423, second scraper member; 4231, second connecting frame; 4232, second scraper part; 4233, second abutting part; 424, limiting plate. DETAILED DESCRIPTION

[0073] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not 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.

[0074] Herein, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or a third component may be interposed between the first component and the second component.

[0075] In this article, when an element or layer is referred to as being "located on," "engaged to," "connected to," "attached to," or "coupled to" another element or layer, it may be directly located on, engaged, connected, attached to, or coupled to another element or layer, or there may be intermediate elements or layers. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to," "directly attached to," or "directly coupled to" another element or layer, there may be no intermediate elements or layers. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between" versus "directly between," "adjacent" versus "directly adjacent," etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0076] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, in the drawings, the thickness of the components may be exaggerated or reduced in order to effectively describe the technical content.

[0077] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0078] See also Figure 1 , Figure 1 The invention shows a production process of anhydrous liquid composite microbial fertilizer coated with a water-soluble film, wherein the production of anhydrous liquid composite microbial fertilizer is divided into the preparation of three mixtures, and a thickener is first added to sorbitol to prepare a basic mixture A, so that the viscosity of the basic mixture A reaches the required viscosity, and a good foundation is provided for the subsequent addition of microorganisms and nutrients, thereby solving the problem of poor mixing degree of the anhydrous liquid composite microbial fertilizer caused by stirring all the components together. At the same time, due to the addition of the thickener, in order to prevent the anhydrous liquid composite microbial fertilizer from adhering to the inner wall of the stirring tank during stirring, the mixer is stirred alternately at a first speed and a second speed, and at the first speed, stirring is performed, and at the second speed, the material adhering to the inner wall of the stirring tank is scraped off, thereby increasing the mixing degree of the anhydrous liquid composite microbial fertilizer.

[0079] Specifically, the process includes:

[0080] S110: Prepare a basic mixture A by stirring sorbitol and a thickener with a stirrer.

[0081] Specifically, step S110 includes the following steps:

[0082] Put 60-65 parts of sorbitol, 0.1-0.2 parts of thickener, and 2-3 parts of water retaining agent into a blender;

[0083] Stir at 20-25°C for 20-30 minutes.

[0084] By forming a basic mixture with stable viscosity, it provides a good foundation for the subsequent addition of microorganisms and nutrients.

[0085] S120: Add microorganisms to the basic mixture A and continue stirring to prepare a mixture B.

[0086] Specifically, step S120 includes the following steps:

[0087] Put 1.5-2 parts of mycorrhizal fungi and 3-4 parts of Bacillus subtilis into the blender with the prepared basic mixture A;

[0088] Stir at 20-25°C for 15-20 minutes.

[0089] By preparing the mixture B, it is ensured that the microorganisms are evenly distributed in the fertilizer, thereby improving the biological activity of the fertilizer.

[0090] S130: After adding nutrient elements to mixture B, stirring is continued to prepare mixture C.

[0091] Specifically, step S130 includes the following steps:

[0092] Put 15-18 parts of 50% mineral fulvic acid and 10-12 parts of nutrient elements into a blender having prepared mixture B, wherein the nutrient elements are one or a combination of two or more of nitrogen, phosphorus and potassium;

[0093] Stir at 40-50°C for 30-40 minutes.

[0094] Evenly mix 50% mineral humic acid and nutrient elements into the fertilizer to improve the fertilizer efficiency and utilization rate.

[0095] S140: injecting the prepared mixture C into a packaging machine, and packaging the water-soluble film using a water-soluble film.

[0096] The mixture C is packaged by a water-soluble film, providing a stable and convenient packaging form, which is convenient for users to use and store.

[0097] The mixer stirs alternately at a first rotational speed and a second rotational speed, and at the first rotational speed, stirring is performed, and at the second rotational speed, materials adhering to the inner wall of the stirring tank (200) are scraped off, thereby increasing the mixing degree of the anhydrous liquid composite microbial fertilizer, and the first rotational speed is greater than the second rotational speed.

[0098] See also Figure 2 and Figure 3In some embodiments, the mixer includes: a control module, a driving mechanism 100, a stirring tank 200, a stirring shaft 300 and a stirring mechanism 400; the stirring mechanism 400 is arranged on the stirring shaft 300 and arranged in the stirring tank 200; the driving mechanism 100 is suitable for driving the stirring shaft 300 to rotate, thereby driving the stirring mechanism 400 to rotate; the stirring mechanism 400 includes: a stirring paddle 410 and a scraping assembly 420; the stirring paddle 410 is connected to the stirring shaft 300; the scraping assembly The component 420 is arranged on the stirring paddle 410; the control module is configured to drive the driving mechanism 100 to work alternately at a first speed and a second speed, wherein the first speed is greater than the second speed; when the driving mechanism 100 drives the stirring shaft 300 to rotate at the first speed, the scraper component 420 is separated from the side wall and the bottom wall of the stirring tank 200; when the driving mechanism 100 drives the stirring shaft 300 to rotate at the second speed, the scraper component 420 is against the side wall and the bottom wall of the stirring tank 200. Since a thickener is added to the anhydrous liquid composite microbial fertilizer, the fertilizer will adhere to the side wall and the bottom wall of the stirring tank 200 during stirring, thereby affecting the mixing degree of the fertilizer. In order to solve this problem, the present application alternately stirs and scrapes the fertilizer by setting two speeds. At the first speed, the fertilizer is stirred at a high speed, and at the second speed, the side wall and the bottom wall of the stirring tank 200 are scraped to improve the mixing degree of the fertilizer.

[0099] It should be noted that when rotating at high speed, if the scraper assembly 420 directly contacts the side walls and bottom walls of the mixing tank 200 for scraping, the scraper assembly 420 will be subjected to excessive friction, thereby causing excessive wear and tear of the scraper assembly 420, which is not convenient for long-term use. Therefore, two speeds are set to alternately stir and scrape the fertilizer, which extends the service life of the scraper assembly 420 and increases the mixing degree of the fertilizer.

[0100] See also Figure 4 and Figure 5The structure of the scraper assembly 420 is described below. The scraper assembly 420 includes: a lifting plate 421, a plurality of first scraper members 422, a plurality of second scraper members 423, and a plurality of limit plates 424; the stirring paddle 410 includes a plurality of blades 411; one end of each blade 411 away from the stirring shaft 300 extends upwardly from a mounting plate 412 along the axial direction of the stirring shaft 300; the first scraper member 422 is arranged on the corresponding blade 411 of the stirring paddle 410, and the second scraper member 423 is arranged on the corresponding mounting plate 412; one end of each limit plate 424 is connected to the corresponding first scraper member 422. A scraper 422 or a second scraper 423 is abutted, and the other end is connected to the lifting plate 421; when the lifting plate 421 rises, the limiting plate 424 is driven to rise to release the restriction on the first scraper 422 and the second scraper 423, and the first scraper 422 and the second scraper 423 are abutted against the bottom wall and the side wall of the mixing tank 200 under the action of centrifugal force; when the lifting plate 421 descends, the limiting plate 424 is driven to insert into the scraper, so that the first scraper 422 and the second scraper 423 are separated from the bottom wall and the side wall of the mixing tank 200.

[0101] When switching from the first speed to the second speed, or from the second speed to the first speed, it is necessary to first control the stirring shaft 300 to stop rotating through the driving mechanism 100, and then drive the lifting plate 421 to drive the limit plate 424 to rise or fall, so as to complete the switching of the states of the first scraper 422 and the second scraper 423.

[0102] Specifically, the first scraper member 422 includes: a first connecting frame 4221, a first scraper portion 4222 and a first abutment portion 4223; the first connecting frame 4221 is arranged on the blade 411; the first scraper portion 4222 is connected to the first abutment portion 4223; the scraping surface of the first scraper portion 4222 passes through the first connecting frame 4221 and is arranged toward the bottom wall of the stirring tank 200; the first abutment portion 4223 abuts against the corresponding limiting plate 424. The second scraper member 423 includes: a second connecting frame 4231, a second scraper portion 4232 and a second abutting portion 4233; the second connecting frame 4231 is arranged on the mounting plate 412; the second scraper portion 4232 is connected to the second abutting portion 4233; the scraping surface of the second scraper portion 4232 passes through the second connecting frame 4231 and is arranged toward the side wall of the stirring tank 200; the second abutting portion 4233 abuts against the corresponding limiting plate 424.

[0103] Among them, the scraping surfaces of the first scraper part 4222 and the second scraper part 4232 are set at an angle, so that the scraped fertilizer can be guided and sent to the center of the mixing tank 200, thereby disturbing the fertilizer at different diameters, thereby improving the stirring effect of the fertilizer during subsequent stirring, thereby improving the mixing degree of the fertilizer.

[0104] In some embodiments, the distances between the first scrapers 422 and the stirring shaft 300 are different; the heights at which the second scrapers 423 are set on the corresponding mounting plate 412 are different. Since the distances between the first scrapers 422 and the stirring shaft 300 are different, the bottom surface of the stirring tank 200 is scraped at all positions. Since the heights at which the second scrapers 423 are set on the corresponding mounting plate 412 are different, the side walls of the stirring tank 200 are scraped at different heights.

[0105] See also Figures 3 to 5, in some embodiments, the lifting disc 421 includes: a liquid limiting ring 4211, a lifting ring 4212, a lifting cylinder 4213, a clamping ring 4214, and a floating foam collection part 4215; the lifting ring 4212 is arranged above the liquid limiting ring 4211 and is connected to the liquid limiting ring 4211 through a connecting plate 4216; the lifting ring 4212 and the liquid limiting ring 4211 are concentrically arranged; the limiting plate 424 is arranged below the liquid limiting ring 4211 and is connected to the liquid limiting ring 4211; the lifting cylinder 4213 is arranged in the driving mechanism 100, and the clamping ring 4214 is sleeved on the piston rod of the lifting cylinder 4213; the outer wall of the clamping ring 4214 is in a C shape; the inner wall of the lifting ring 4212 is clamped with the outer wall of the clamping ring 4214; the lifting cylinder 4213 is adapted to drive the clamping ring 4214 to lift, so as to drive the lifting ring 4212 to lift; the floating foam collection part 4215 is arranged below the liquid limiting ring 4211 and is provided with a through hole adapted to the stirring shaft 300; the control module is further configured to control the lifting cylinder 4213 to lift the floating foam collection part 4215 above the liquid in the mixing tank 200 when driving the driving mechanism 100 to work at the first rotation speed or the second rotation speed; the control module is further configured to, before switching from the first rotation speed to the second rotation speed, first control the driving mechanism 100 to stop working, then drive the lifting cylinder 4213 to drive the floating foam collection part 4215 to descend below the liquid in the mixing tank 200, and then drive the limiting plate 424 to rise to release the restriction on the first scraping member 422 and the second scraping member 423, so that the first scraping member 422 and the second scraping member 423 abut against the bottom wall and the side wall of the mixing tank 200 under the action of centrifugal force. At this time, control the driving mechanism 100 to drive the stirring shaft 300 to rotate at the second rotation speed, and the floating foam in the floating foam collection part 4215 is broken under the action of centrifugal force through the breaking holes at the bottom of the floating foam collection part 4215.

[0106] Before switching from the first switching speed to the second speed, by controlling the floating foam collection part 4215 to lift and descend in the liquid of the mixing tank 200, the floating foam is collected. Then, the lifting cylinder rises to release the restriction on the first scraping member 422 and the second scraping member 423. At this time, the floating foam collection tank rises above the liquid level in the mixing tank 200. Then, drive the stirring shaft 300 to rotate at the second speed. During the rotation, the floating foam inside the floating foam collection tank is broken under the action of centrifugal force through the breaking holes at the bottom of the floating foam collection part 4215, completing the breaking of the floating foam, so as to break the floating foam generated when the mixer is stirred at the first rotation speed, so as not to affect the mixing of the anhydrous liquid compound microbial fertilizer.

[0107] In summary, the present invention provides a production process of anhydrous liquid composite microbial fertilizer coated with a water-soluble film, the process comprising: preparing a basic mixture A by stirring sorbitol and a thickener with a mixer; preparing a mixture B by adding microorganisms to the basic mixture A and continuing to stir; preparing a mixture C by adding nutrient elements to the mixture B and continuing to stir; injecting the prepared mixture C into a packaging machine, and packaging the mixture C with a water-soluble film. By dividing the production of the composite microbial fertilizer into the preparation of three mixtures, first adding a thickener to sorbitol to prepare a basic mixture A, so that the viscosity of the basic mixture A reaches the required viscosity, providing a good foundation for the subsequent addition of microorganisms and nutrients, thereby solving the problem of poor mixing degree of the anhydrous liquid composite microbial fertilizer caused by stirring all the components together. At the same time, due to the addition of the thickener, in order to prevent the anhydrous liquid composite microbial fertilizer from adhering to the inner wall of the mixing tank during stirring, the mixer stirs alternately at a first speed and a second speed. At the first speed, stirring is performed, and at the second speed, the material adhering to the inner wall of the mixing tank is scraped off, thereby increasing the mixing degree of the anhydrous liquid composite microbial fertilizer.

[0108] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film, characterized in that: include: Prepare a basic mixture A by stirring sorbitol and a thickener with a blender; Adding microorganisms to the basic mixture A and continuing stirring to prepare a mixture B; Adding the nutrient elements to the mixture B and continuing to stir to prepare a mixture C; The prepared mixture C is injected into a packaging machine, and the mixture C is packaged using a water-soluble film; The mixer performs stirring alternately at a first rotation speed and a second rotation speed, and at the first rotation speed, stirring is performed, and at the second rotation speed, materials adhering to the inner wall of the stirring tank (200) are scraped off, thereby increasing the mixing degree of the anhydrous liquid composite microbial fertilizer, and the first rotation speed is greater than the second rotation speed; The mixer stirs alternately at a first speed and a second speed, and stirs at the first speed, and scrapes off the material adhering to the inner wall of the stirring tank (200) at the second speed, that is: When the driving mechanism (100) drives the stirring shaft (300) to rotate at a first rotation speed, the scraper assembly (420) separates from the side wall and the bottom wall of the stirring tank (200); when the driving mechanism (100) drives the stirring shaft (300) to rotate at a second rotation speed, the scraper assembly (420) abuts against the side wall and the bottom wall of the stirring tank (200); At the same time, when the driving mechanism (100) is driven to work at the first rotation speed or the second rotation speed, the lifting cylinder (4213) is controlled to raise the froth collecting portion (4215) to above the liquid in the stirring tank (200); Before switching from the first speed to the second speed, the froth collecting portion (4215) is first controlled to descend to below the liquid in the stirring tank (200), and the driving mechanism (100) is controlled to drive the stirring shaft (300) to rotate at the second speed, so that the froth in the froth collecting portion (4215) passes through the crushing holes at the bottom of the froth collecting portion (4215) under the action of centrifugal force and is crushed.

2. The process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film as claimed in claim 1, characterized in that: The step of preparing the basic mixture A by stirring sorbitol and a thickener with a stirrer comprises: Put 60-65 parts of sorbitol, 0.1-0.2 parts of thickener and 2-3 parts of water retaining agent into a blender and stir at 20-25°C for 20-30 minutes.

3. The process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film as claimed in claim 1, characterized in that: The step of adding microorganisms to the basic mixture A and continuing stirring to prepare the mixture B comprises: 1.5-2 parts of mycorrhizal fungi and 3-4 parts of Bacillus subtilis are placed in a blender with the prepared basic mixture A, and stirred at a temperature of 20-25° C. for 15-20 minutes.

4. The process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film as claimed in claim 1, characterized in that: The step of adding nutrient elements to the mixture B and continuing stirring to prepare the mixture C comprises: Put 15-18 parts of 50% mineral fulvic acid and 10-12 parts of nutrient elements into the blender with the prepared mixture B, and stir at 40-50°C for 30-40 minutes; Among them, the nutrient elements are one or a combination of two or more of nitrogen, phosphorus and potassium.

5. The process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film as claimed in claim 1, characterized in that: The stirrer comprises: a control module, a driving mechanism (100), a stirring tank (200), a stirring shaft (300) and a stirring mechanism (400); The stirring mechanism (400) is arranged on the stirring shaft (300) and is arranged in the stirring tank (200); The driving mechanism (100) is suitable for driving the stirring shaft (300) to rotate, thereby driving the stirring mechanism (400) to rotate; The stirring mechanism (400) comprises: A stirring paddle (410) and a scraper assembly (420); The stirring paddle (410) is connected to the stirring shaft (300); The scraper assembly (420) is arranged on the stirring paddle (410); The control module is configured to drive the driving mechanism (100) to operate alternately at a first rotation speed and a second rotation speed.

6. The process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film as claimed in claim 5, characterized in that: The scraper assembly (420) comprises: a lifting plate (421), a plurality of first scraper members (422), a plurality of second scraper members (423), and a plurality of limit plates (424); The stirring paddle (410) includes a plurality of blades (411); One end of each blade (411) away from the stirring shaft (300) extends upwards along the axial direction of the stirring shaft (300) out of a mounting plate (412); The first scraper (422) is arranged on the corresponding blade (411) of the stirring paddle (410), and the second scraper (423) is arranged on the corresponding mounting plate (412); One end of each of the limiting plates (424) abuts against the corresponding first scraper (422) or second scraper (423), and the other end is connected to the lifting plate (421); When the lifting plate (421) rises, it drives the limiting plate (424) to rise to release the restriction on the first scraper (422) and the second scraper (423); the first scraper (422) and the second scraper (423) abut against the bottom wall and the side wall of the stirring tank (200) under the action of centrifugal force; When the lifting plate (421) descends, it drives the limiting plate (424) to be inserted into the scraper, so that the first scraper (422) and the second scraper (423) are separated from the bottom wall and the side wall of the stirring tank (200).

7. The process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film as claimed in claim 6, characterized in that: The first scraper (422) comprises: A first connecting frame (4221), a first scraping portion (4222) and a first abutting portion (4223); The first connection frame (4221) is arranged on the blade (411); The first scraping portion (4222) is connected to the first abutting portion (4223); The scraping surface of the first scraping portion (4222) passes through the first connecting frame (4221) and is arranged toward the bottom wall of the stirring tank (200); The first abutting portion (4223) abuts against the corresponding limiting plate (424).

8. The process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film as claimed in claim 6, characterized in that: The second scraper (423) comprises: A second connecting frame (4231), a second scraping portion (4232) and a second abutting portion (4233); The second connection frame (4231) is arranged on the mounting plate (412); The second scraping portion (4232) is connected to the second abutting portion (4233); The scraping surface of the second scraping portion (4232) passes through the second connecting frame (4231) and is arranged toward the side wall of the stirring tank (200); The second abutting portion (4233) abuts against the corresponding limiting plate (424).

9. The process for producing anhydrous liquid composite microbial fertilizer coated with a water-soluble film as claimed in claim 6, characterized in that: The distances between the plurality of first scraping members (422) and the stirring shaft (300) are different; The installation heights of the plurality of second scraping members (423) on the corresponding mounting plate (412) are different.

10. The production process of the water-soluble film-coated anhydrous liquid compound microbial fertilizer according to claim 6, characterized in that The lifting disc (421) includes: A liquid limiting ring (4211), a lifting ring (4212), a lifting cylinder (4213), a clamping ring (4214), and a foam collecting portion (4215); The lifting ring (4212) is arranged above the liquid limiting ring (4211) and is connected to the liquid limiting ring (4211) through a connecting plate (4216); The lifting ring (4212) and the liquid limiting ring (4211) are concentrically arranged; The limiting plate (424) is arranged below the liquid limiting ring (4211) and is connected to the liquid limiting ring (4211); The lifting cylinder (4213) is arranged in the driving mechanism (100), and the clamping ring (4214) is sleeved on the piston rod of the lifting cylinder (4213); The outer wall of the clamping ring (4214) is in a U-shaped; The inner wall of the lifting ring (4212) is clamped with the outer wall of the clamping ring (4214); The lifting cylinder (4213) is adapted to drive the clamping ring (4214) to lift, so as to drive the lifting ring (4212) to lift; The foam collecting portion (4215) is arranged below the liquid limiting ring (4211) and is provided with a through hole adapted to the stirring shaft (300); The control module is further configured to control the lifting cylinder (4213) to lift the foam collecting portion (4215) above the liquid in the stirring tank (200) when driving the driving mechanism (100) to work at the first speed or the second speed; The control module is further configured to, before switching from the first speed to the second speed, first control the driving mechanism (100) to stop working, then drive the lifting cylinder (4213) to drive the foam collecting portion (4215) to descend below the liquid in the stirring tank (200), and then drive the limiting plate (424) to rise to release the restriction on the first scraping member (422) and the second scraping member (423), so that the first scraping member (422) and the second scraping member (423) abut against the bottom wall and the side wall of the stirring tank (200) under the action of centrifugal force. At this time, control the driving mechanism (100) to drive the stirring shaft (300) to rotate at the second speed, and the foam in the foam collecting portion (4215) is broken under the action of centrifugal force through the breaking holes at the bottom of the foam collecting portion (4215).

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