Pleurotus nebrodensis growth substrate stirring device

Abstract

The utility model belongs to the technical field of pleurotus nebrodensis planting, and particularly relates to a pleurotus nebrodensis growth substrate stirring device which comprises a stirring tank and a stirring unit arranged in the stirring tank, the stirring unit comprises a stirring shaft, a first blade and a second blade, the stirring shaft is horizontally arranged, and the first blade is arranged in the stirring tank. The first blade and the second blade are respectively arranged at two ends of the stirring shaft, the rotating directions of the first blade and the second blade are opposite, the middle blade is connected between the inner ends of the first blade and the second blade, and the first blade, the second blade and the middle blade are respectively of a strip-shaped structure. The first blade and the second blade are respectively connected with the stirring shaft by virtue of supporting rods, the stirring device can be smoothly inserted into cottonseed hulls to stir the cottonseed hulls, so that the cottonseed hulls and other raw materials are uniformly stirred, the resistance of a stirrer in the stirring process is reduced, and the occurrence of equipment faults is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of white lingzhi mushroom cultivation technology, specifically relating to a white lingzhi mushroom growth substrate mixing device. Background Technology

[0002] Cottonseed hulls contain cellulose, protein, fat, carbohydrates, alcohols, gossypol, and minerals, with soluble carbohydrates accounting for approximately 22% and total nitrogen content around 0.67%, resulting in a carbon-to-nitrogen ratio of 70:1. Nutritionally comprehensive, they are an excellent raw material for cultivating Pleurotus eryngii (white oyster mushroom). Cottonseed hulls comprise about 80% of the Pleurotus eryngii growth substrate, with the remainder consisting of sawdust, bran, etc. However, cottonseed hulls possess a certain degree of toughness and hardness, and their irregular shape increases friction between hulls when moist, making them prone to sticking together. This can lead to uneven mixing during agitation and require the mixer to overcome greater resistance, increasing the risk of equipment failure. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a stirring device for the growth substrate of Pleurotus eryngii, which can smoothly insert cottonseed hulls and stir them, so that the cottonseed hulls are mixed evenly with other raw materials, reducing the resistance encountered by the mixer during the stirring process and reducing the occurrence of equipment failure.

[0004] The specific technical solution adopted in this utility model is as follows:

[0005] A stirring device for a growth substrate of Pleurotus eryngii includes a stirring tank and a stirring unit disposed within the stirring tank. The stirring tank is provided with an inlet and an outlet. Crucially, the stirring unit includes a stirring shaft, a first blade, and a second blade. The stirring shaft is horizontally positioned, and the first and second blades are respectively disposed at both ends of the stirring shaft. The first and second blades rotate in opposite directions, and an intermediate blade connects the inner ends of the first and second blades. The first blade, the second blade, and the intermediate blade are all strip-shaped structures, and the first and second blades are respectively connected to the stirring shaft by means of a support rod.

[0006] The discharge port is located on the lower side of the mixing tank, and the discharge port is corresponding to the inner ends of the first blade and the second blade. A valve plate is provided on the discharge port.

[0007] The first blade and the second blade are respectively provided with a first scraper and a second scraper at their inner ends. The first scraper and the second scraper are both arranged parallel to the stirring shaft. The first scraper and the second scraper pass through the discharge port in sequence.

[0008] The projections of the first scraper and the second scraper on the axial direction of the stirring shaft overlap or overlap.

[0009] The stirring shaft is provided with a scraper shaft, which is located on the inner end of the first blade or the second blade. The fixed end of the scraper shaft is connected to the stirring shaft, and a scraper rod is provided on the cantilever end. The scraper rod is arranged parallel to the stirring shaft, and the scraper rod is connected to the scraping range of the first scraper blade or the second scraper blade.

[0010] The stirring device further includes a third blade and a fourth blade. The third blade is disposed between the first blade and the stirring shaft, and the fourth blade is disposed between the second blade and the stirring shaft. The third blade rotates in the opposite direction to the first blade, and the fourth blade rotates in the opposite direction to the second blade. Both the third blade and the fourth blade are connected to the stirring shaft by means of a support rod.

[0011] The upper end of the mixing tank is provided with a mesh cover plate, and the feed inlet is located on the mesh cover plate.

[0012] The mixing tank is located in a pit, with its upper end flush with or below the ground. The discharge port is connected to the equipment of the next process via a hoist.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model uses first and second blades with opposite rotation directions, which can generate stirring forces in different directions during stirring, so that the matrix raw materials form a complex flow path in the stirring tank, thereby avoiding stirring dead corners and improving the degree of stirring uniformity.

[0015] 2. An intermediate blade was added, which further enhanced the mixing and turning effect on the substrate materials, and further prevented the substrate materials from not being fully mixed.

[0016] 3. The first blade, the second blade, the middle blade and the stirring shaft form a hollow stirring unit, which allows the matrix material to pass through the hollow part, and plays a role in shearing and separating the adhering matrix material, reducing the resistance to be overcome during stirring and improving the stirring effect;

[0017] 4. A third and fourth blade were added to the stirring shaft, which improved the disturbance of the matrix raw materials and the uniformity of mixing. The overall fluidity of the mixed matrix was improved, and the matrix could flow out of the outlet more evenly and stably, avoiding the situation of poor discharge or unstable discharge volume caused by local matrix raw material adhesion or unevenness. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the stirring unit of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] In the attached diagram, 1 is the mixing tank, 2 is the mixing shaft, 3 is the inlet, 4 is the outlet, 5 is the first blade, 6 is the second blade, 7 is the middle blade, 8 is the support rod, 9 is the valve plate, 10 is the first scraper, 11 is the second scraper, 12 is the scraper shaft, 1201 is the scraper rod, 13 is the third blade, 14 is the fourth blade, and 15 is the mesh cover plate. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0022] Specific implementation examples Figure 1 , Figure 2 As shown, this utility model relates to a stirring device for a growth substrate of Pleurotus eryngii, including a stirring tank 1 and a stirring unit disposed within the stirring tank 1. The stirring tank 1 is provided with an inlet 3 and an outlet 4. Crucially, the stirring unit includes a stirring shaft 2, a first blade 5, and a second blade 6. The stirring shaft 2 is horizontally positioned, with the first blade 5 and the second blade 6 respectively disposed at both ends of the stirring shaft 2. The first blade 5 and the second blade 6 rotate in opposite directions. An intermediate blade 7 connects the inner ends of the first blade 5 and the second blade 6. The first blade 5, the second blade 6, and the intermediate blade 7 are all strip-shaped structures. The first blade 5 and the second blade 6 are connected to the stirring shaft 2 via support rods 8. Preferably, both ends of the intermediate blade 7 are fixedly connected to the support rods 8.

[0023] During operation, cottonseed hulls, bran, cornmeal, and other matrix materials are added to the mixing tank 1 through the feed inlet 3. The mixing device is then activated, stirring the matrix materials to ensure uniform mixing. The first blade 5 and the second blade 6 rotate in opposite directions, generating stirring forces in different directions during mixing. This creates a complex flow path for the matrix materials within the mixing tank, preventing dead zones. An intermediate blade 7 connects the inner ends of the first blade 5 and the second blade 6, further enhancing the stirring and agitation of the matrix materials, ensuring thorough mixing and preventing any unmixed materials from remaining. The first blade 5, second blade 6, and intermediate blade 7 are all strip-shaped structures, forming a perforated mixing unit with the mixing shaft 2. This allows the matrix materials to pass through the perforations, shearing and separating any adhering materials, reducing resistance during mixing and minimizing the risk of equipment malfunction due to excessive resistance. Furthermore, the strip-shaped blades can disturb the matrix materials at different positions, altering their direction and speed of movement, thus improving the uniformity of mixing.

[0024] Furthermore, the discharge port 4 is located on the lower side of the mixing tank 1, corresponding to the inner ends of the first blade 5 and the second blade 6. A valve plate 9 is installed on the discharge port 4. When the mixing shaft 2 rotates clockwise, the first blade 5 and the second blade 6 mix the matrix raw material and push it to the discharge port 4. When the valve plate 9 is closed, the mixing device only performs sufficient mixing. When the valve plate 9 is open, the discharge speed and flow rate of the matrix can be adjusted according to production needs.

[0025] Furthermore, a first scraper 10 and a second scraper 11 are respectively provided on the inner ends of the first blade 5 and the second blade 6. The first scraper 10 and the second scraper 11 are both arranged parallel to the stirring shaft 2, and the first scraper 10 and the second scraper 11 pass through the discharge port 4 in sequence. The first scraper 10 and the second scraper 11 push and lift the matrix material in the mixing tank 1, so that the matrix material adhering to the inner wall of the mixing tank 1 can participate in the mixing smoothly, and can also prevent the matrix from accumulating at the discharge port 4, ensuring smooth discharge.

[0026] The projections of the first scraper blade 10 and the second scraper blade 11 on the axial direction of the stirring shaft 2 overlap or overlap. When the stirring shaft 2 rotates once, the overlapping or overlapping area of ​​the first scraper blade 10 and the second scraper blade 11 can be scraped twice, ensuring the comprehensiveness and continuity of scraping without leaving gaps. This effectively cleans the area around the discharge port 4, making the discharge from the discharge port smooth.

[0027] A scraper shaft 12 is provided on the stirring shaft 2. The scraper shaft 12 is located on the inner end of the first blade 5 or the second blade 6. The fixed end of the scraper shaft 12 is connected to the stirring shaft 2, and a scraper rod 17 is provided on the cantilever end. The scraper rod 17 is arranged parallel to the stirring shaft 2 and connects with the scraping range of the first scraper blade 10 or the second scraper blade 11. Specifically, the first scraper blade 10 and the second scraper blade 11 are cantilevered towards each other. The scraper rod 17 is connected to the first blade 5, and the scraper rod 17 connects with the scraping range of the first scraper blade 10. The setting of the scraper rod 17 further expands the scraping range, and more thoroughly cleans the inner wall of the mixing tank 1 and the area near the discharge port 4, further preventing substrate residue from remaining near the discharge port 4.

[0028] The mixing device also includes a third blade 13 and a fourth blade 14. The third blade 13 is disposed between the first blade 5 and the mixing shaft 2, and the fourth blade 14 is disposed between the second blade 6 and the mixing shaft 2. The rotation direction of the third blade 13 is opposite to that of the first blade 5, and the rotation direction of the fourth blade 14 is opposite to that of the second blade 6. Both the third blade 13 and the fourth blade 14 are connected to the mixing shaft 2 by means of a support rod 8. The axial length of the third blade 13 is less than that of the first blade 5, and the axial length of the fourth blade 14 is less than that of the second blade 6. The distance between the third blade 13 and the fourth blade 14 is greater than the distance between the first blade 5 and the second blade 6. The arrangement of the third blade 13 and the fourth blade 14 improves the disturbance of the matrix raw materials, improves the mixing uniformity, and improves the overall fluidity of the matrix after mixing. The matrix can flow out from the discharge port 4 more evenly and stably, avoiding the situation of poor discharge or unstable discharge volume caused by local matrix raw material adhesion or unevenness.

[0029] The preferred mixing tank 1 is provided with a mesh cover plate 15 at the upper end, and the feed port 3 is provided on the mesh cover plate 15. During the feeding, mixing and discharging process, the operator can observe the matrix in the mixing tank 1. When the operator pours the matrix material into the mixing tank 1 through the feed port 3, the matrix material that splashes onto the mesh cover plate 15 can fall into the mixing tank 1 along the holes of the mesh cover plate 15, reducing the workload of the operator.

[0030] Furthermore, the mixing tank 1 is set in the pit, with the upper end of the mixing tank 1 being flush with or below the ground. This eliminates the need to raise the bags containing the matrix raw materials, making it convenient to unpack the bags. The discharge port 4 is connected to the equipment of the next process via a hoist, facilitating the transport of the mixed matrix to the next process. This is beneficial for the layout of the entire production process, enabling automated production, improving production efficiency, and reducing labor costs.

Claims

1. A stirring device for a growth substrate of Pleurotus eryngii, comprising a stirring tank (1) and a stirring unit disposed within the stirring tank (1), wherein the stirring tank (1) is provided with an inlet (3) and an outlet (4), characterized in that: The stirring unit includes a stirring shaft (2), a first blade (5) and a second blade (6). The stirring shaft (2) is horizontally arranged. The first blade (5) and the second blade (6) are respectively arranged at both ends of the stirring shaft (2). The first blade (5) and the second blade (6) rotate in opposite directions. An intermediate blade (7) is connected between the inner ends of the first blade (5) and the second blade (6). The first blade (5), the second blade (6) and the intermediate blade (7) are strip-shaped structures. The first blade (5) and the second blade (6) are respectively connected to the stirring shaft (2) by means of a support rod (8).

2. The stirring device for the growth substrate of Pleurotus eryngii according to claim 1, characterized in that: The discharge port (4) is located on the lower side of the mixing tank (1). The discharge port (4) is corresponding to the inner ends of the first blade (5) and the second blade (6). A valve plate (9) is provided on the discharge port (4).

3. The stirring device for the growth substrate of Pleurotus eryngii according to claim 2, characterized in that: The first blade (5) and the second blade (6) are respectively provided with a first scraper (10) and a second scraper (11) at their inner ends. The first scraper (10) and the second scraper (11) are both arranged parallel to the stirring shaft (2). The first scraper (10) and the second scraper (11) pass through the discharge port (4) in sequence.

4. The stirring device for the growth substrate of Pleurotus eryngii according to claim 3, characterized in that: The first scraper (10) and the second scraper (11) are arranged with their projections overlapping or overlapping in the axial direction of the stirring shaft (2).

5. The stirring device for the growth substrate of Pleurotus eryngii according to claim 3, characterized in that: The stirring shaft (2) is provided with a scraper shaft (12), which is located on the inner end of the first blade (5) or the second blade (6). The fixed end of the scraper shaft (12) is connected to the stirring shaft (2), and a scraper rod (17) is provided on the cantilever end. The scraper rod (17) is arranged parallel to the stirring shaft (2), and the scraper rod (17) is connected to the scraping range of the first scraper blade (10) or the second scraper blade (11).

6. The stirring device for the growth substrate of Pleurotus eryngii according to claim 1, characterized in that: The stirring device further includes a third blade (13) and a fourth blade (14). The third blade (13) is disposed between the first blade (5) and the stirring shaft (2), and the fourth blade (14) is disposed between the second blade (6) and the stirring shaft (2). The third blade (13) rotates in the opposite direction to the first blade (5), and the fourth blade (14) rotates in the opposite direction to the second blade (6). Both the third blade (13) and the fourth blade (14) are connected to the stirring shaft (2) by means of a support rod (8).

7. The stirring device for the growth substrate of Pleurotus eryngii according to claim 1, characterized in that: The upper end of the mixing tank (1) is provided with a mesh cover plate (15), and the feed inlet (3) is provided on the mesh cover plate (15).

8. The stirring device for the growth substrate of Pleurotus eryngii according to claim 1, characterized in that: The mixing tank (1) is set in the pit, and the upper end of the mixing tank (1) is flush with or lower than the ground. The discharge port (4) is connected to the equipment of the next process by means of a hoist.

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