Fermentation device for liquid fertilizer production

Abstract

The utility model provides a fermentation device for liquid fertilizer production, which relates to the technical field of liquid water-soluble fertilizer production and comprises an outer tank body, an inner tank body is arranged in the outer tank body, and a stirring and ventilating integrated component is arranged in the inner tank body. The stirring and ventilation integrated assembly is used for stirring the interior of the inner tank body and generating bubbles at the same time, the fermentation efficiency is improved, the stirring and ventilation integrated assembly is used for stirring materials in the inner tank body and generating bubbles at the same time, the generated bubbles can be more fully dispersed in fermentation liquid, and the fermentation efficiency is improved. The tiny bubbles have the characteristics of large specific surface area, long retention time in liquid, slow rising speed and the like, and can be more fully dissolved in a liquid fertilizer raw material to provide lasting and uniform oxygen supply for microorganisms.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid water soluble fertilizer production technical field especially, it is a kind of fermentation device for liquid fertilizer production. BACKGROUND

[0002] As is known to all, water-soluble fertilizer refers to the compound fertilizer containing nitrogen, phosphorus, potassium, calcium, magnesium, trace elements, amino acids, humic acid, alginic acid and the like, which can be completely dissolved in water. There are two kinds of solid water-soluble fertilizer and liquid water-soluble fertilizer. There are macronutrient water-soluble fertilizer, medium element water-soluble fertilizer, trace element water-soluble fertilizer, amino acid-containing water-soluble fertilizer, humic acid-containing water-soluble fertilizer and organic water-soluble fertilizer according to nutrient content.

[0003] According to a kind of fermentation device for liquid fertilizer production disclosed in Chinese patent document (grant announcement number: CN219621102U), it includes device body, device body includes stirring subassembly, lower pressure subassembly, cleaning subassembly, safety subassembly, fermentation subassembly and support leg, stirring subassembly is installed in fermentation subassembly inside, lower pressure subassembly is installed in fermentation subassembly inside top end, fermentation subassembly is installed in support leg top end, stirring subassembly includes motor, shaft and stirring rod, lower pressure subassembly includes electric telescopic rod one, lower pressure plate and through-hole, cleaning subassembly includes electric telescopic rod two and cleaning rod, safety subassembly includes exhaust one-way valve and safety valve, fermentation subassembly includes fermentation tank, feed inlet, discharge outlet and stop valve. The fermentation device for liquid fertilizer production can press the fertilizer preparation material floating on the liquid surface into the liquid by setting the lower pressure subassembly, avoid affecting the fertilizer preparation effect, and the inner wall of the fermentation tank can be cleaned by setting the cleaning subassembly.

[0004] However, the above-mentioned scheme still has the following shortcomings when implemented:

[0005] During the fermentation process, the fermentation tank usually needs sufficient gas supply. However, due to the lack of a dedicated gas supply device, the gas present in the tank body stays in the fermentation liquid for a short time when the device is in use, so that the microorganisms in different regions of the fermentation tank cannot continuously and stably obtain sufficient oxygen, especially in the middle and lower parts of the fermentation tank and some corner regions, which often easily leads to a situation of insufficient oxygen supply in local areas. This will seriously affect the growth and metabolism of microorganisms, and thus lead to insufficient fermentation process and uneven fermentation quality, such as unstable content of effective ingredients in the fermentation product, longer fermentation period, etc., which is not conducive to the efficient industrial production of liquid fertilizer.

[0006] Therefore, we propose a fermentation device for liquid fertilizer production. Utility model content

[0007] The utility model discloses a fermentation device for liquid fertilizer production, which can solve the problems of the prior art, such as insufficient gas supply, short gas residence time in the fermentation liquid, difficulty in continuously and stably obtaining sufficient oxygen for microorganisms in different areas, local oxygen deficiency in the middle and lower parts and corners, influence on the growth and metabolism of microorganisms, and insufficient fermentation and uneven quality.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0009] A kind of fermentation device for liquid fertilizer production, including outer tank body, the inside of the outer tank body is equipped with inner tank body, the inside of the inner tank body is equipped with stirring ventilation integrated assembly, the stirring ventilation integrated assembly is used to carry out bubble generation while stirring in the inside of inner tank body, increase fermentation efficiency;

[0010] The stirring ventilation integrated assembly includes bearing seat, the inside of the bearing seat is equipped with stirring rod, the first rotating wheel is sleeved on the stirring rod, the fixed frame is installed on the both side walls of the bearing seat, the second rotating wheel is equipped on the fixed frame, the top of the second rotating wheel is equipped with drive motor, the connecting belt is equipped between the first rotating wheel and the second rotating wheel, the stirring disc is fixedly installed on the outside wall of the stirring rod, the inside of the stirring rod is equipped with air inlet pipe, the bottom of the air inlet pipe is equipped with bubble generator, the bubble generator is equipped with a plurality of gas outlets.

[0011] As a preferred scheme of the utility model, a plurality of connecting fixing pieces are arranged between the outer tank body and the inner tank body, and thermal insulation cotton is filled between the outer tank body and the inner tank body.

[0012] As a preferred scheme of the utility model, a feeding pipe is arranged on the left side of the top of the outer tank body, and the feeding pipe is used to connect the inside of the inner tank body with the outside.

[0013] As a preferred scheme of the utility model, the bearing seat is fixedly connected with the outer tank body, the bearing seat is fixedly connected with the fixed frame, and the second rotating wheel is connected with the fixed frame through a bearing.

[0014] As a preferred scheme of the utility model, the drive motor drives the second rotating wheel to rotate, the second rotating wheel drives the first rotating wheel to rotate through the connecting belt, and the first rotating wheel drives the stirring rod and the stirring disc to rotate.

[0015] As a preferred scheme of the utility model, the air inlet pipe is fixedly connected with the fixed frame.

[0016] As a preferred scheme of the utility model, the air inlet pipe is connected with the bubble generator.

[0017] Compared with the prior art, the utility model has the advantages of

[0018] In the utility model, through the stirring ventilation integrated assembly, the bubble generation is carried out while the material in the inner tank body is stirred, the generated bubbles can be more fully dispersed in the fermentation liquor, these small bubbles have the characteristics of large specific surface area, long residence time in liquid and slow rising speed, can be more fully dissolved in the liquid fertilizer raw material, provide durable and uniform oxygen supply for microorganism, help microorganism to better carry out aerobic fermentation, improve fermentation quality and efficiency, especially suitable for some aerobic microorganism dominant liquid fertilizer fermentation process, compared with the condition that the traditional lack of special gas supply equipment, effectively increase the residence time of gas in the fermentation liquor, make the microorganism in each area of the inner tank especially the middle lower part and the corner can continuously and stably obtain sufficient oxygen, avoid the local oxygen deficiency phenomenon, significantly improve the full degree of fermentation, further improve the fermentation efficiency, shorten the fermentation period, help the efficient production of liquid fertilizer.

[0019] The stirring disc rotates along with the stirring rod, can fully stir the fermentation liquor and raw material, make the material mixing more uniform, further guarantee that microorganism and nutrient substance, oxygen and the like can fully contact, create more favorable conditions for fermentation reaction, optimize the fermentation process, improve the overall fermentation quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model provides a kind of main body structure schematic diagram of fermentation device for liquid fertilizer production;

[0021] Figure 2 The utility model provides a kind of internal structure schematic diagram of outer tank body of fermentation device for liquid fertilizer production;

[0022] Figure 3 The utility model provides a kind of main body section schematic diagram of fermentation device for liquid fertilizer production;

[0023] Figure 4 The utility model provides a kind of explosion partial structure schematic diagram of fermentation device for liquid fertilizer production.

[0024] Legend explanation: 1, outer tank body;2, inner tank body;3, connecting fixed part;4, feed pipe;5, bearing seat;6, stirring rod;7, first rotating wheel;8, fixed frame;9, second rotating wheel;10, drive motor;11, connecting belt;12, stirring disc;13, air inlet pipe;14, bubble generator;15, gas outlet. DETAILED DESCRIPTION

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Example

[0030] like Figures 1-4 As shown, in the fermentation device of this utility model, the integrated stirring and aeration assembly plays a key role. The bearing seat 5 is stably placed inside the outer tank 1, providing reliable support and a rotational foundation for the stirring rod 6.

[0031] The first rotating wheel 7 sleeved on the stirring rod 6 is connected with the second rotating wheel 9 carried by the fixed frame 8 on the two side walls of the bearing seat 5 through the connecting belt 11. The driving motor 10 at the top serves as a power source and drives the second rotating wheel 9 to rotate after being started. The first rotating wheel 7 also rotates through the transmission of the connecting belt 11, thereby driving the stirring rod 6 and the stirring disc 12 fixed on the outer side wall of the stirring rod 6 to rotate synchronously. At the same time, the stirring rod 6 is ingeniously provided with the air inlet pipe 13 inside. The air inlet pipe 13 extends to the air bubble generator 14 at the bottom. The air bubble generator 14 is distributed with a plurality of air outlets 15. When the gas is transported to the air bubble generator 14 through the air inlet pipe 13, the micro air bubbles can be released from the air outlets 15 and mixed into the fermentation liquid.

[0032] Principle: The rotation of the stirring rod 6 and the stirring disc 12 is realized by the wheel system transmission driven by the motor from the perspective of mechanical movement. The transmission mode can stably and effectively transmit power to the stirring part and ensure the continuity of the stirring action. The air bubble generator 14 can generate micro air bubbles based on its special internal structure and gas dispersion principle. It can break the entering gas into numerous micro air bubbles. The specific surface area of the micro air bubbles is greatly increased compared with ordinary air bubbles. According to the physical and chemical principle, the increase of the specific surface area means the increase of the contact area with the liquid. The buoyancy in the liquid is relatively small, the upward speed is slowed down, and the residence time in the liquid is prolonged, so that the micro air bubbles can be more fully dissolved in the liquid fertilizer raw material, providing sufficient and uniform oxygen supply for microorganisms.

[0033] Work flow: First, start the driving motor 10. The driving motor 10 drives the second rotating wheel 9 to rotate, drives the first rotating wheel 7 to rotate through the connecting belt 11, and makes the stirring rod 6 and the stirring disc 12 start to rotate to stir the fermentation liquid and the raw materials. At the same time, the gas enters the air bubble generator 14 through the air inlet pipe 13. The air bubble generator 14 converts the gas into micro air bubbles and releases them from the air outlets 15 into the fermentation liquid being stirred, realizing the synchronization of stirring and aeration and creating good conditions for the fermentation process.

[0034] The design between the outer tank body 1 and the inner tank body 2 is that a plurality of connecting fixing parts 3 are arranged between the outer tank body 1 and the inner tank body 2. The connecting fixing parts 3 firmly fix the outer tank body 1 and the inner tank body 2 from multiple directions, ensuring the stability and integrity of the whole tank structure. In addition, the space between them is also filled with thermal insulation cotton. The thermal insulation cotton is uniformly distributed in the interlayer space, forming an effective thermal insulation barrier, which can effectively block the heat loss in the fermentation process, whether the heat is transferred to the inner tank body 2 or the heat is emitted from the inner tank body 2 to the outer tank body 1.

[0035] Principle: the connecting fixture 3 plays a mechanical connection role, through the way of multi-point fixation, dispersing the force, so that the inner and outer tank bodies 1 can still maintain the relative position stability when bearing various forces in the operation process of the fermentation device (such as the vibration caused by stirring, material pressure, etc.), avoiding the deformation or loosening of the tank body, and the heat preservation principle of the heat preservation cotton is based on the low thermal conductivity characteristics of its material, which can reduce the heat transfer through heat conduction, thereby maintaining the relatively stable temperature environment required for the fermentation inside the inner tank body 2, because the microorganism fermentation usually has a relatively strict requirement on the temperature, and the appropriate temperature can ensure the activity of the microorganism and the normal rate of the fermentation reaction.

[0036] Workflow: when the fermentation device is assembled, the connecting fixture 3 is installed to stably connect the outer tank body 1 and the inner tank body 2; then the heat preservation cotton is filled into the interlayer space between the two, and the heat preservation cotton continuously plays a heat preservation role during the entire fermentation process, ensuring the temperature stability inside the inner tank body 2, which is beneficial to the normal fermentation.

[0037] The left side of the top of the outer tank body 1 is carefully provided with a feeding pipe 4, one end of which is communicated with the outside world, and the other end extends into the inside of the inner tank body 2, and the pipe diameter is reasonably designed to adapt to the conveying requirements of the raw materials in the liquid fertilizer production process, and the corresponding smoothing treatment is made at the pipe wall and other parts of the feeding pipe 4 to reduce the resistance of the raw materials in the conveying process, so as to ensure that the raw materials can smoothly flow from the outside into the inner tank body 2, realizing the convenient and efficient connection between the inner tank body 2 and the outside world.

[0038] Principle: the pipe diameter and smoothing treatment of the feeding pipe 4 are based on the principle of fluid mechanics, and the appropriate pipe diameter can ensure that the raw materials enter with reasonable flow and flow rate, avoiding the blockage caused by too small pipe diameter or affecting the accuracy of conveying caused by too large pipe diameter, and the smoothing treatment of the pipe wall is to reduce the friction between the raw materials and the pipe wall, according to the formula of friction force, reducing the roughness of the contact surface can reduce the friction force, so that the raw materials can more smoothly enter the inner tank body 2 under the action of gravity or external conveying force (such as pumping, etc.).

[0039] Workflow: when it is necessary to add raw materials to the inner tank body 2, the raw materials are conveyed to the inlet of the feeding pipe 4 through the corresponding conveying equipment (such as pump, conveying belt, etc.), and the raw materials enter the inner tank body 2 along the smooth pipe wall under the action of their own gravity or external conveying force, completing the feeding operation.

[0040] The bearing seat 5 and the outer tank 1 are fixedly connected in a stable manner, such as by welding, high-strength bolt connection, etc., to ensure that the position of the bearing seat 5 in the outer tank 1 is fixed and unchanged, providing a solid support foundation for the entire stirring and aeration assembly. The bearing seat 5 is also fixedly connected with the fixed frame 8, ensuring the stability of the fixed frame 8. The second rotating wheel 9 on the fixed frame 8 is connected with the fixed frame 8 through a bearing. The bearing is selected according to the rotating speed and stress of the rotating wheel, etc., and can make the second rotating wheel 9 rotate flexibly on the fixed frame 8, reducing friction and wear during rotation, and ensuring smooth power transmission.

[0041] Principle: Welding, bolt connection and other fixed connection methods can provide strong connection strength. Based on the principle of material mechanics, these connection methods can withstand large tensile force, pressure and shear force, etc., to ensure that the parts do not loosen or displace. The principle of the bearing is to use the rolling body to roll between the inner and outer rings to convert sliding friction into rolling friction. According to the principle of tribology, the rolling friction coefficient is much smaller than the sliding friction coefficient, thereby greatly reducing the friction and realizing the flexible rotation of the rotating wheel, which is beneficial to the stable and efficient transmission of power to the stirring rod 6 and other components.

[0042] Workflow: During installation of the fermentation device, first, the bearing seat 5 is fixed firmly on the outer tank 1, then the fixed frame 8 is fixed with the bearing seat 5, and then the second rotating wheel 9 with a bearing is installed on the fixed frame 8. Finally, connect the rotating components through the connecting belt 11, etc., to make the entire stirring and aeration integrated assembly connected stably and able to operate normally.

[0043] The inlet pipe 13 and the fixed frame 8 are connected through reliable fixed connection methods, such as pipe clamps, welding, etc., to ensure that the inlet pipe 13 is stable in position during the entire device operation process and will not shake or displace, ensuring that the gas can be stably transported along the inlet pipe 13. The connection between the inlet pipe 13 and the bubble generator 14 is realized through a sealed connection structure, such as using sealed pipe fittings, threaded connection with gasket, etc., to prevent gas leakage, so that the gas can smoothly and without loss enter the inside of the bubble generator 14, preparing for the generation of small bubbles.

[0044] Principle: Pipe clamps, welding and other fixed connection methods can limit the freedom of the inlet pipe 13 from a mechanical structure, keeping it fixed. According to the principle of mechanical design, a stable structure helps to maintain the normal operation of the system. The sealed connection structure is based on the principle of sealing, filling the small gaps at the connection site with materials such as gaskets to prevent gas molecules from escaping from these gaps, thereby ensuring the sealing of the gas during transportation and ensuring that the gas can all enter the bubble generator 14 for bubble generation.

[0045] Work flow: in the device assembly link, first, the air inlet pipe 13 is fixed on the fixed frame 8 by using pipe clamp or welding and the like, then the air inlet pipe 13 is communicated with the bubble generator 14 through the sealing pipe and the like sealing connection structure, in the fermentation process, the gas can enter the bubble generator 14 along the air inlet pipe 13 from the external gas source to generate micro-bubbles.

[0046] Complete work flow:

[0047] First, in the assembly stage of the fermentation device, the bearing seat 5 is fixed on the outer tank body 1 by welding, bolt connection and the like, the fixed frame 8 is fixed with the bearing seat 5, the second rotating wheel 9 with bearing is installed on the fixed frame 8, the air inlet pipe 13 is fixed on the fixed frame 8 by using pipe clamp, welding and the like and is communicated with the bubble generator 14 through the sealing structure, the heat preservation cotton between the outer tank body 1 and the inner tank body 2 is filled, the feeding pipe 4 is installed, then when the fermentation operation is to be carried out, the liquid fertilizer raw material is transported to the inner tank body 2 through the feeding pipe 4, then the driving motor 10 is started, the motor drives the second rotating wheel 9 to rotate, the first rotating wheel 7 is driven to rotate by the connecting belt 11, the stirring rod 6 and the stirring disc 12 are rotated, the raw material is stirred, at the same time, the gas enters the bubble generator 14 from the external gas source through the air inlet pipe 13 to generate micro-bubbles and release into the fermentation liquid, in the whole fermentation process, the heat preservation cotton continuously keeps warm, the connecting fixing piece 3 of the inner and outer tank bodies 1 ensures that the tank body structure is stable, until the fermentation is completed, the liquid fertilizer product is obtained.

[0048] Through the cooperation of the above components, the fermentation device of the utility model solves the problems of insufficient gas supply and uneven fermentation in the prior art, effectively improves the fermentation quality and efficiency of the liquid fertilizer, and provides a strong guarantee for the industrialized production of the liquid fertilizer.

[0049] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A fermentation apparatus for liquid fertilizer production comprising an outer tank body (1), characterized in that: The inner part of the outer tank body (1) is provided with an inner tank body (2), the inner part of the inner tank body (2) is provided with a stirring and aeration integrated assembly, which is used for bubble generation while stirring the inner part of the inner tank body (2), thereby increasing the fermentation efficiency. The stirring and aeration integrated assembly comprises a bearing seat (5), the inner part of the bearing seat (5) is provided with a stirring rod (6), the stirring rod (6) is sleeved with a first rotating wheel (7), the both sides of the bearing seat (5) are provided with a fixed frame (8), the fixed frame (8) is provided with a second rotating wheel (9), the top of the second rotating wheel (9) is provided with a driving motor (10), the first rotating wheel (7) and the second rotating wheel (9) are provided with a connecting belt (11), the outer side wall of the stirring rod (6) is fixedly provided with a stirring disc (12), the inner part of the stirring rod (6) is provided with an air inlet pipe (13), the bottom of the air inlet pipe (13) is provided with a bubble generator (14), the bubble generator (14) is provided with a plurality of air outlets (15).

2. The fermentation device for liquid fertilizer production according to claim 1, characterized in that: The outer tank body (1) and the inner tank body (2) are provided with a plurality of connecting and fixing parts (3), the outer tank body (1) and the inner tank body (2) are filled with heat preservation cotton.

3. The fermentation device for liquid fertilizer production according to claim 2, characterized in that: The left side of the top of the outer tank body (1) is provided with a feeding pipe (4), which is used for connecting the inner part of the inner tank body (2) with the outside.

4. The fermentation device for liquid fertilizer production according to claim 3, characterized in that: The bearing seat (5) is fixedly connected with the outer tank body (1), the bearing seat (5) is fixedly connected with the fixed frame (8), and the second rotating wheel (9) is connected with the fixed frame (8) through a bearing.

5. The fermentation device for liquid fertilizer production according to claim 4, characterized in that: The driving motor (10) drives the second rotating wheel (9) to rotate, the second rotating wheel (9) drives the first rotating wheel (7) to rotate through the connecting belt (11), and the first rotating wheel (7) drives the stirring rod (6) and the stirring disc (12) to rotate.

6. The fermentation device for liquid fertilizer production according to claim 5, characterized in that: The air inlet pipe (13) is fixedly connected with the fixed frame (8).

7. The fermentation device for liquid fertilizer production according to claim 6, characterized in that: The air inlet pipe (13) is connected with the bubble generator (14).

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