Uniform mixing device for bio-organic fertilizer

Abstract

The utility model belongs to the technical field of fertilizer mixing, and particularly relates to a uniform mixing device for bio-organic fertilizer, which comprises a mixing bin and is characterized in that a hollow rotating shaft is rotatably connected in the mixing bin, three wall scraping rods are arranged on the outer side of the hollow rotating shaft, a plurality of connecting rods are arranged between the three wall scraping rods and the hollow rotating shaft, and the connecting rods are connected with the hollow rotating shaft. A plurality of stirring rods are mounted on the outer walls of the connecting rods, and a plurality of airflow nozzles are mounted on the sides, facing the hollow rotating shaft, of the three wall scraping rods. Raw materials attached to the inner wall of the mixing bin can be continuously scraped, mixing dead angles formed by bin wall residues are avoided, it is ensured that all the raw materials participate in mixing, meanwhile, high-pressure airflow rotating along with the wall scraping rods is continuously sprayed to the center in the barrel, raw material agglomeration is broken, raw material fluidity is enhanced, and mechanical stirring is formed through the connecting rods distributed in a staggered mode; under the synergistic effect of airflow disturbance, the raw material contact frequency and mixing depth are improved, and then the raw material mixing uniformity is improved.

Description

Technical Field

[0001] This utility model belongs to the field of fertilizer mixing technology, specifically relating to a device for uniformly mixing biological organic fertilizer. Background Technology

[0002] In the production of organic fertilizer, thoroughly mixing various raw materials such as livestock and poultry manure, straw, and mushroom residue is a crucial step. This is because different raw materials have different physical properties and chemical compositions. Only through uniform mixing can the subsequent fermentation process be ensured to be stable and efficient, and ultimately the nutrients in the finished organic fertilizer be evenly distributed to achieve the expected fertilizer efficiency standards. Currently, this mixing process is usually carried out in a mixing tank or stirring chamber using a mechanical stirring device.

[0003] However, in actual use, existing mixing devices often suffer from problems due to the high viscosity and moisture content of organic fertilizer raw materials. During the mixing process, a large amount of raw materials tend to stick together and adhere to the inner wall of the mixing device, forming dead corners that are difficult to effectively mix. At the same time, the resistance of the mixing components increases when running in viscous raw materials, resulting in poor overall fluidity of the materials. This poor fluidity makes it difficult for the materials to form sufficient radial and axial movement, ultimately leading to low mixing uniformity and low efficiency. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a uniform mixing device for biological organic fertilizer, which solves the problem that raw materials tend to adhere to the inner wall during the mixing process and have poor fluidity, resulting in low mixing uniformity.

[0005] To achieve the above objectives, a bio-organic fertilizer uniform mixing device is provided, comprising a mixing chamber, characterized in that: a hollow rotating shaft is rotatably connected inside the mixing chamber, three scraper rods are provided on the outer side of the hollow rotating shaft, several connecting rods are installed between the three scraper rods and the hollow rotating shaft, several stirring rods are installed on the outer walls of the connecting rods, several airflow nozzles are installed on the side of the three scraper rods facing the hollow rotating shaft, an air intake chamber is provided above the mixing chamber, an air supply ring is provided below the air intake chamber, and the air supply ring is located on the top outer side of the hollow rotating shaft.

[0006] Preferably, a support ring is installed on the outer wall of the mixing chamber, and a sealing cover is installed at the bottom of the mixing chamber.

[0007] Preferably, a transmission chamber is installed above the mixing chamber.

[0008] Preferably, the top of the hollow rotating shaft has several connecting ports.

[0009] Preferably, the stirring rods are staggered.

[0010] Preferably, the air supply ring has an open annular groove on the side facing the hollow rotating shaft, and the position of the open annular groove corresponds to the communication port.

[0011] Preferably, a connecting pipe is installed between the air intake chamber and the air supply ring.

[0012] The utility model has the following beneficial effects:

[0013] By combining components such as the hollow rotating shaft and the scraper rod, the raw materials adhering to the inner wall of the mixing chamber can be continuously scraped off during the mixing process, avoiding the formation of mixing dead zones due to residue on the chamber wall and ensuring that all raw materials participate in the mixing. At the same time, the hollow rotating shaft works in conjunction with the airflow nozzle to continuously spray high-pressure airflow that rotates with the scraper rod into the center of the cylinder, breaking up raw material agglomerates and enhancing the flowability of the raw materials. In addition, the staggered connecting rods form mechanical stirring, which works synergistically with the airflow disturbance to increase the contact frequency and mixing depth of the raw materials, thereby improving the uniformity of the raw material mixing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a cross-sectional structural diagram of the mixing chamber in this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the hollow rotating shaft in this utility model;

[0017] Figure 4 This is a schematic diagram of the hollow rotating shaft and scraping rod in this utility model;

[0018] Figure 5 for Figure 3 Enlarged diagram of point A in the middle.

[0019] In the diagram: 1. Mixing chamber; 11. Support ring; 12. Sealing cap; 13. Transmission chamber; 2. Hollow rotating shaft; 21. Connecting port; 3. Scraper rod; 31. Connecting rod; 32. Stirring rod; 33. Airflow nozzle; 4. Air intake chamber; 41. Air supply ring; 42. Open ring groove; 43. Connecting pipe. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0021] Example:

[0022] like Figure 1—5 shows: A bio-organic fertilizer uniform mixing device, including a mixing chamber 1, characterized in that: a hollow rotating shaft 2 is rotatably connected inside the mixing chamber 1, three scraping rods 3 are arranged on the outside of the hollow rotating shaft 2, a plurality of connecting rods 31 are installed between the three scraping rods 3 and the hollow rotating shaft 2, a plurality of stirring rods 32 are installed on the outer wall of the plurality of connecting rods 31, a plurality of airflow nozzles 33 are installed on the side of the three scraping rods 3 facing the hollow rotating shaft 2, an air intake chamber 4 is arranged above the mixing chamber 1, an air supply ring 41 is arranged below the air intake chamber 4, and the air supply ring 41 is arranged on the top outer side of the hollow rotating shaft 2.

[0023] The mixing chamber 1 is the core load-bearing component. It is a cylindrical hollow structure made of stainless steel, with a polished inner wall to reduce material adhesion. A hollow rotating shaft 2 is rotatably connected inside the mixing chamber 1. The top of the hollow rotating shaft 2 extends to the outside of the mixing chamber 1 to connect to the drive unit. The bottom of the hollow rotating shaft 2 is rotatably engaged with the center of the bottom of the mixing chamber 1 via a bearing. The hollow interior of the hollow rotating shaft 2 allows for airflow. Three scraping rods 3 are evenly distributed at 120 degrees on the outside of the hollow rotating shaft 2. The scraping rods 3 are long, strip-shaped metal rods, their length adapted to the internal height of the mixing chamber 1. The side of the hollow rotating shaft 2 maintains a certain gap with the inner wall of the mixing chamber 1, which can scrape off the raw materials adhering to the inner wall of the mixing chamber 1 during rotation, avoiding the continuous adhesion of raw materials to the inner wall of the mixing chamber 1 during the stirring process, thus reducing the mixing effect. Several connecting rods 31 are welded between each scraper rod 3 and the hollow rotating shaft 2. The connecting rods 31 serve to fix the scraper rod 3 and transmit rotational power. Several stirring rods 32 are welded to the outer wall of each connecting rod 31, and the stirring rods 32 are perpendicular to the connecting rods 31. The stirring rods 32 are used to stir the raw materials when rotating with the hollow rotating shaft 2 and the scraper rods 3. During the mixing process, the hollow rotating shaft 2 is connected to the connecting rod 31 and the scraper rod 3, allowing airflow entering the hollow rotating shaft 2 to be transported to the scraper rod 3 via the connecting rod 31. Several airflow nozzles 33 are installed on the side of the scraper rod 3 facing the hollow rotating shaft 2. The airflow entering the scraper rod 3 is ejected through these nozzles, which are positioned towards the hollow rotating shaft 2. This allows the airflow nozzles 33 to spray high-pressure airflow onto the raw materials during mixing, aiding in dispersion, improving flowability, and preventing material accumulation. In conjunction with the stirring rod 32, the mixing uniformity of the raw materials is improved. An air duct 4 is set above the mixing chamber 1. The air duct 4 is equipped with fan blades and a small air compressor. When the fan blades are started, they will introduce the outside airflow into the compressor. The compressor will deliver the high-pressure airflow into the air supply ring 41. The air supply ring 41 can deliver the airflow into the hollow rotating shaft 2. Then, through the hollow rotating shaft 2 and the connecting rod 31, the airflow is delivered into the scraper rod 3. Finally, it is discharged through the airflow nozzle 33 to disperse the raw materials and improve their flowability.

[0024] A support ring 11 is installed on the outer wall of the mixing chamber 1, and a sealing cover 12 is installed at the bottom of the mixing chamber 1. The support ring 11 is welded to the outer wall of the mixing chamber 1, and four channel steel support legs are evenly welded below the support ring 11 to stably support the entire device on the ground and prevent the bottom of the mixing chamber 1 from directly contacting the ground and causing wear. A circular discharge port is opened at the bottom of the mixing chamber 1, and a sealing cover 12 is screwed to the discharge port. The diameter of the sealing cover 12 is adapted to the discharge port and the edge is equipped with a rubber sealing gasket. It can fit tightly with the discharge port during the mixing operation to prevent raw material leakage. After the mixing operation, the operator can rotate the sealing cover 12 to discharge the mixed raw material inside the mixing chamber 1 from the discharge port at the bottom of the mixing chamber 1.

[0025] A transmission chamber 13 is installed above the mixing chamber 1. The transmission chamber 13 is a cylindrical hollow structure. The bottom of the transmission chamber 13 is welded to the top of the mixing chamber 1 via an end plate. The top of the hollow rotating shaft 2 extends through the top of the mixing chamber 1 into the interior of the transmission chamber 13. A driven gear is mounted on the hollow rotating shaft 2 inside the transmission chamber 13. The fan blade drive shaft installed inside the induced draft chamber 4 also extends into the transmission chamber 13, and a driven gear is mounted on its extended end. A drive motor is installed on one side of the transmission chamber 13. A drive gear is mounted on the output shaft of the drive motor. The drive gear meshes with two driven gears, causing the hollow rotating shaft to rotate. Shaft 2 can drive components such as scraper rod 3 and stirring rod 32 to rotate, completing the mixing of raw materials and scraping off the raw materials adhering to the inner wall of mixing chamber 1. The fan blades installed inside the air intake chamber 4 can introduce airflow into the compressor installed inside the air intake chamber 4 through high-speed rotation. The high-pressure airflow output by the compressor will be delivered to the scraper rod 3 through components such as air supply ring 41 and hollow rotating shaft 2. The airflow will finally be discharged through airflow nozzle 33 to disperse the raw materials during the mixing process, thereby improving the fluidity of the raw materials during mixing and achieving the purpose of improving the uniformity of raw material mixing.

[0026] The top of the hollow shaft 2 has several connecting ports 21; the top peripheral wall of the hollow shaft 2 has several circular connecting ports 21 evenly spaced along the circumferential direction. The connecting ports 21 are located inside the air supply ring 41 to ensure that the airflow in the air supply ring 41 can smoothly enter the internal cavity of the hollow shaft 2 through the connecting ports 21, and then be conveyed by the connecting rod 31 and the scraper rod 3, and finally sprayed into the raw materials in the mixing chamber 1 through the airflow nozzle 33 to achieve airflow-assisted mixing.

[0027] Several stirring rods 32 are staggered; several stirring rods 32 are installed on connecting rods 31 in a staggered manner. Specifically, several stirring rods 32 on different connecting rods 31 are staggered with each other. This staggered distribution allows the stirring rods 32 to contact the raw materials at different positions in the mixing chamber 1 more comprehensively when rotating, avoiding the occurrence of stirring dead corners, thereby improving the uniformity of raw material mixing and reducing the possibility of raw material agglomeration.

[0028] An open annular groove 42 is provided on the side of the air supply ring 41 facing the hollow rotating shaft 2, and the position of the open annular groove 42 corresponds to the connection port 21. An annular groove 42 is provided on the inner wall of the side of the air supply ring 41 facing the hollow rotating shaft 2, and the position of the open annular groove 42 corresponds to the connection port 21 on the hollow rotating shaft 2, ensuring that the connection port 21 is completely covered by the open annular groove 42. When the hollow rotating shaft 2 rotates, the connection port 21 can remain connected to the open annular groove 42 at any angle, ensuring that the airflow in the air supply ring 41 continuously and stably enters the interior of the hollow rotating shaft 2 through the open annular groove 42 and the connection port 21, avoiding the interruption of airflow delivery due to the rotation of the hollow rotating shaft 2, and ensuring the continuity of airflow auxiliary mixing.

[0029] A connecting pipe 43 is installed between the air intake chamber 4 and the air supply ring 41. Several stainless steel connecting pipes 43 are evenly installed between the bottom of the air intake chamber 4 and the outer wall of the air supply ring 41. The top end of the connecting pipe 43 is welded and fixed to the bottom of the air intake chamber 4 and connected to the output end of the compressor installed inside the air intake chamber 4. The bottom end of the connecting pipe 43 is welded and fixed to the outer wall of the air supply ring 41 and connected to the internal cavity of the air supply ring 41. The connecting pipe 43 will evenly distribute the high-pressure airflow into the air supply ring 41 to ensure that the air pressure is consistent at all positions in the air supply ring 41, thereby making the airflow entering the hollow rotating shaft 2 stable and uniform, providing a continuous and stable airflow to the airflow nozzle 33 to ensure the airflow auxiliary mixing effect.

[0030] The working principle of this utility model is as follows: When mixing raw materials for bio-organic fertilizer, the operator first screws the sealing cap 12 into the discharge port at the bottom of the mixing chamber 1 to prevent subsequent leakage of raw materials. Then, the organic fertilizer raw materials to be mixed, such as livestock and poultry manure, straw, and mushroom residue, are put into the mixing chamber 1. After the raw materials are put in, the drive motor on one side of the transmission chamber 13 is started. The output shaft of the drive motor drives the drive gear to rotate. The drive gear meshes with the driven gear on the hollow rotating shaft 2 and the driven gear on the fan blade drive shaft installed inside the air chamber 4, causing the fan blade and the hollow rotating shaft 2 to rotate. When the hollow rotating shaft 2 rotates, it synchronously drives the three scraper rods 3 and several stirring rods 32 to rotate through the connecting rod 31. During the rotation, the scraper rods 3 continuously scrape off the raw materials adhering to the chamber wall to avoid forming a mixing dead zone. At the same time, the staggered stirring rods 32 will push the raw materials to rotate. The material is thoroughly stirred and dispersed, and the high-pressure airflow from the airflow nozzle 33 further promotes the radial and axial movement of the raw materials. At the same time, the fan blades introduce external airflow into the air intake chamber 4, which is equipped with an air compressor. The compressor output is connected to the connecting pipe 43, which delivers the high-pressure airflow to the air supply ring 41. The air supply ring 41 delivers the airflow to the hollow shaft 2 through the open ring groove 42 and the connecting port 21. The airflow entering the hollow shaft 2 passes through the connecting rod 31 into the scraper rod 3 and is finally discharged through the airflow nozzle 33. The airflow nozzle 33 is positioned towards the hollow shaft 2, so that the high-pressure airflow is sprayed towards the raw materials, thereby dispersing the raw materials and improving the fluidity of the raw materials during mixing. With the stirring of the stirring rod 32, the uniformity of the raw material mixing is improved.

[0031] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A bio-organic fertilizer uniform mixing device, comprising a mixing chamber (1), characterized in that: The mixing chamber (1) is rotatably connected to a hollow rotating shaft (2). Three scraping rods (3) are provided on the outside of the hollow rotating shaft (2). Several connecting rods (31) are installed between the three scraping rods (3) and the hollow rotating shaft (2). Several stirring rods (32) are installed on the outer walls of the several connecting rods (31). Several airflow nozzles (33) are installed on the side of the three scraping rods (3) facing the hollow rotating shaft (2). An air intake chamber (4) is provided above the mixing chamber (1). An air supply ring (41) is provided below the air intake chamber (4). The air supply ring (41) is located on the top outer side of the hollow rotating shaft (2).

2. The bio-organic fertilizer uniform mixing device according to claim 1, characterized in that: The mixing chamber (1) is equipped with a support ring (11) on its outer wall and a sealing cover (12) is installed at the bottom of the mixing chamber (1).

3. The bio-organic fertilizer uniform mixing device according to claim 1, characterized in that: A transmission chamber (13) is installed above the mixing chamber (1).

4. The bio-organic fertilizer uniform mixing device according to claim 1, characterized in that: The hollow rotating shaft (2) has several connecting ports (21) at its top.

5. The bio-organic fertilizer uniform mixing device according to claim 1, characterized in that: Several of the stirring rods (32) are staggered.

6. The bio-organic fertilizer uniform mixing device according to claim 4, characterized in that: The air supply ring (41) has an open annular groove (42) on the side facing the hollow rotating shaft (2), and the position of the open annular groove (42) corresponds to the communication port (21).

7. The bio-organic fertilizer uniform mixing device according to claim 1, characterized in that: A connecting pipe (43) is installed between the air intake chamber (4) and the air supply ring (41).

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