High-shear double-shaft conditioner

Abstract

The utility model discloses a high-shear double-shaft hardening and tempering device which comprises a large cylinder, a small cylinder, a large hardening and tempering shaft and a small hardening and tempering shaft, and the large hardening and tempering shaft and the small hardening and tempering shaft are installed in the large cylinder and the small cylinder respectively. The large tempering shaft and the small tempering shaft are respectively provided with at least three kinds of paddles, the paddles at the two ends are obliquely arranged, the inclination directions of the paddles at the two ends of the large tempering shaft are opposite, and the inclination directions of the paddles at the two ends of the small tempering shaft are the same. When the large hardening and tempering shaft and the small hardening and tempering shaft rotate, the linear speeds of the corresponding paddles are different, the mixing uniformity of feed at all positions is different, different shearing forces are generated due to different positions during continuous stirring, and the shearing effect is better; and secondly, the inclined paddles at the two ends provide different mixing forces, so that mixed feeding is facilitated during feeding, especially during discharging, part of the feed can be mixed and stirred, and the problem that the size of feed particles is affected due to the fact that coagulated large-block-shaped mixed materials enter the bulking machine is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of feed processing, and particularly relates to a high-shear double-shaft conditioner. Background Art

[0002] In recent years, pet food containing fresh meat has become one of the fastest-growing industries in the pet food industry. Producers of pet food processing equipment are also adjusting the design and development of extruders and their supporting double-shaft conditioners in order to process pet food with a relatively high proportion of fresh meat added.

[0003] When the existing double-shaft conditioner supporting the extruder produces pet food with a relatively high proportion of fresh meat, due to the higher moisture content of fresh meat compared with general materials, the existing double-shaft conditioner has poor shearing effect on fresh meat and materials, and the mixing uniformity is poor. The existing double-shaft conditioner is very likely to cause the mixed feed to agglomerate easily; or the conditioner itself is blocked; or lumps of different sizes are sent into the extruder, resulting in uneven feeding of the extruder and fluctuating material flow, which will affect the quality and appearance of feed pellets. Summary of the Utility Model

[0004] In order to solve the technical problem of poor shearing effect of the existing double-shaft conditioner in the background art, the purpose of the utility model is to provide a high-shear double-shaft conditioner, which can solve the above problems.

[0005] The technical solution for achieving the purpose of the utility model is: a high-shear double-shaft conditioner, including a large cylinder, a small cylinder, a large conditioning shaft and a small conditioning shaft. The large conditioning shaft and the small conditioning shaft are respectively installed in the large cylinder and the small cylinder; at least three kinds of paddles are respectively installed on the large conditioning shaft and the small conditioning shaft. The paddles at both ends are inclined, and the inclination directions of the paddles at both ends of the large conditioning shaft are opposite, and the inclination directions of the paddles at both ends of the small conditioning shaft are the same.

[0006] In this technical solution, three different paddles are respectively arranged on the large conditioning shaft and the small conditioning shaft, specifically, the angles of the paddles with their corresponding conditioning shafts are different. First, when the large conditioning shaft and the small conditioning shaft rotate, the linear velocities of the corresponding paddles are different, and the mixing uniformity of the feed at each place is different. When stirring continuously, different shearing forces will be generated at different positions, and the shearing effect will be better; secondly, the inclined paddles at both ends provide different mixing forces, which is convenient for mixed feeding during feeding. Especially during discharging, part of the feed will be mixed and stirred to prevent the agglomerated large-sized mixed materials from entering the extruder, resulting in problems affecting the size of feed pellets. Using this equipment, especially when fresh meat needs to be added as a feed raw material and strong shearing is required, the shearing force is stronger, the shearing effect is better, and the problem that large-sized mixed materials affect the size of feed pellets in subsequent links is effectively prevented.

[0007] Further, a forward-pushing large paddle, a neutral large paddle, and a reverse-pushing large paddle are installed on the large conditioning shaft, and a first reverse-pushing small paddle, a neutral small paddle, and a second reverse-pushing small paddle are installed on the small conditioning shaft. The forward-pushing large paddle and the reverse-pushing large paddle are located at both ends of the large conditioning shaft, and the first reverse-pushing small paddle and the second reverse-pushing small paddle are located at both ends of the small conditioning shaft. The three different large paddles on the large conditioning shaft are correspondingly arranged with the three different small paddles on the small conditioning shaft, and cooperate with shearing to provide different shearing forces at different positions, so as to efficiently shear and mix the feed processing.

[0008] Further, a feed inlet is arranged at the middle position of one end of the large cylinder body and the small cylinder body, and a discharge outlet is arranged at the other end. The forward-pushing large paddle and the first reverse-pushing small paddle are arranged at one end close to the feed inlet, and the reverse-pushing large paddle and the second reverse-pushing small paddle are arranged at one end close to the discharge outlet; the feed inlet is located outside the forward-pushing large paddle, the forward-pushing large paddle inclines towards the side close to the feed inlet, the reverse-pushing large paddle, the first reverse-pushing small paddle, and the second reverse-pushing small paddle incline away from the feed inlet, and the neutral large paddle and the neutral small paddle are respectively perpendicular to the large conditioning shaft and the small conditioning shaft; the numbers of the forward-pushing large paddle and the first reverse-pushing small paddle respectively account for 10%-20% of the numbers of the large paddles and the small paddles, the numbers of the neutral large paddle and the neutral small paddle respectively account for 75%-85% of the numbers of the large paddles and the small paddles, and the numbers of the reverse-pushing large paddle and the second reverse-pushing small paddle are both two. The forward-pushing large paddle and the first reverse-pushing small paddle initially stir the incoming mixed material. The neutral large paddle and the neutral small paddle account for a relatively large proportion and are correspondingly arranged, providing a large shearing force during rotation, with good shearing effect, which can achieve the effect of shearing and mixing the raw materials. Finally, the discharge is controlled by the reverse-pushing large paddle and the second reverse-pushing small paddle to prevent problems such as uneven agglomeration of feed particles from occurring when large pieces of mixed material enter the next-stage extruder.

[0009] Further, an angle A is formed between the forward-pushing large paddle, the reverse-pushing large paddle, the first reverse-pushing small paddle, the second reverse-pushing small paddle and the corresponding neutral large paddle, neutral small paddle in the inclination direction, and the size of the angle A is 14°-16°. Through experimental comparison, when the forward-pushing large paddle, the reverse-pushing large paddle, the first reverse-pushing small paddle, and the second reverse-pushing small paddle are respectively set to form an angle of about 15° with the neutral large paddle and the neutral small paddle, the effect of mixing raw materials at the feed inlet is good, and at the discharge outlet, it neither affects the discharge nor effectively prevents large pieces of mixed material from entering the next stage. Combined with the quantity ratio of different paddles, the shearing time of the material can be maximally extended, and the conditioning effect of the raw materials can be enhanced.

[0010] Further, the ratio of the diameter of the large cylinder to the diameter of the small cylinder ranges from 1.25:1 to 1.4:1. Within this ratio range, the proportion of the large cylinder and the small cylinder is optimal, and the effect of internal mixed materials is the best.

[0011] Further, the distance between the cross-section centers of the large cylinder and the small cylinder is C, and the ratio range of the diameter of the small cylinder to C is 1.2:1 to 1.4:1. Combining with the ratio range of the diameter of the large cylinder to the diameter of the small cylinder, the diameter of the small cylinder can be further defined internally, which can not only meet the strong shearing of raw materials but also ensure the mixing effect, especially when fresh meat and other raw materials need to be mixed together to produce feed.

[0012] Further, the distance between the blades on the large conditioning shaft and the inner wall of the large cylinder ranges from 8 mm to 12 mm, and the distance between the blades on the small conditioning shaft and the inner wall of the small cylinder ranges from 7 mm to 10 mm. The above is the best gap between the blades and the inner wall of the cylinder. Such a range enables the mixed materials to be stirred by the blades without adhering to the inner wall of the cylinder, and the shearing force of the blades is the largest, and the mixing effect is the best.

[0013] Further, a material addition port is also provided on the large cylinder, and the position of the material addition port is close to the feed port. Other raw materials such as fresh meat can be added through the material addition port, which is convenient for stirring and shearing.

[0014] Further, the large conditioning shaft and the small conditioning shaft rotate in the same direction. If the large conditioning shaft rotates forward, the small conditioning shaft also rotates forward, and vice versa. The same rotation direction can maximize the shearing ability, maximize the mixing uniformity of raw materials such as fresh meat and other raw materials and steam, and has a self-cleaning effect, minimizing the fresh meat residue amount to the greatest extent.

[0015] Further, it further includes a first coupling, a first reduction motor, a second coupling, and a second reduction motor. The large conditioning shaft is connected to the first coupling and the first reduction motor, and the small conditioning shaft is connected to the second coupling and the second reduction motor. The two reduction motors provide different speeds and input torques, and better shearing and mixing effects can be achieved through separate control methods.

[0016] Further, other functional components such as a vent port, a maintenance door, and a steam addition port can also be provided on the cylinder.

[0017] Adopting the above technical solutions, the utility model has the following beneficial effects:

[0018] (1) In this solution, three different types of blades are arranged on the quenching and tempering shaft, and the inclination directions of the forward and reverse blades at both ends are opposite, which can effectively prevent the problem of large-volume mixed materials entering the next stage at the discharge port position;

[0019] (2) The neutral blades on the corresponding quenching and tempering shaft account for the largest proportion. When shearing raw materials such as fresh meat, high shear performance and mixing effect can be ensured;

[0020] (3) Combining the proportion of different blade numbers on the quenching and tempering shaft, and the angles of the forward and reverse blades, the shearing time of the material is extended to the greatest extent, and the modulation effect of the raw materials is enhanced;

[0021] (4) The sizes of the two cylinders are limited, and the ratio of the small cylinder to the central positions of the two cylinders is limited, and the ratio of the large and small cylinders reaches the optimum;

[0022] (5) The distance between the blades on the quenching and tempering shaft and the inner wall of the cylinder is restricted, which can meet the shearing force and prevent the mixed materials from adhering to the inner wall of the cylinder at the same time. Description of the Drawings

[0023] In order to make the content of the present utility model easier to be clearly understood, the following further detailed description of the present utility model is given according to specific embodiments in conjunction with the drawings, where

[0024] Figure 1 is the schematic diagram of the overall structure of the conditioner in the present utility model;

[0025] Figure 2 is the schematic diagram of the internal structure of the conditioner in the present utility model;

[0026] Figure 3 is the schematic diagram of the side structure of the conditioner in the present utility model;

[0027] Figure 4 is the schematic diagram of the structure of the cooperation between the large quenching and tempering shaft and the small quenching and tempering shaft in the present utility model;

[0028] Figure 5 is the schematic diagram of the blade distribution structure on the large quenching and tempering shaft in the present utility model;

[0029] Figure 6 is the schematic diagram of the blade installation structure on the large quenching and tempering shaft in the present utility model;

[0030] Figure 7 is the schematic diagram of the blade distribution structure on the small quenching and tempering shaft in the present utility model;

[0031] Figure 8 is the schematic diagram of the blade installation structure on the small quenching and tempering shaft in the present utility model.

[0032] The reference numerals in the drawings are: 1 large cylinder body; 2 small cylinder body; 3 large quenched and tempered shaft; 4 small quenched and tempered shaft; 5 forward large paddle; 6 neutral large paddle; 7 reverse large paddle; 8 first reverse small paddle; 9 neutral small paddle; 10 second reverse small paddle; 11 feed inlet; 12 discharge outlet; 13 material addition port; 14 first coupling; 15 first reduction motor; 16 steam vent; 17 inspection door; 18 steam addition port; 19 second coupling; 20 second reduction motor. Detailed implementation mode

[0033] Example:

[0034] As Figures 1 - 4 shown, this embodiment provides a high-shear double-shaft conditioner, which includes a large cylinder body 1, a small cylinder body 2, a large quenched and tempered shaft 3 and a small quenched and tempered shaft 4. The large quenched and tempered shaft 3 and the small quenched and tempered shaft 4 are respectively installed in the large cylinder body 1 and the small cylinder body 2; at least three kinds of paddles are respectively installed on the large quenched and tempered shaft 3 and the small quenched and tempered shaft 4. The paddles at both ends are inclined, and the inclination directions of the paddles at both ends of the large quenched and tempered shaft 3 are opposite, and the inclination directions of the paddles at both ends of the small quenched and tempered shaft 4 are the same. In this technical solution, three different kinds of paddles are respectively arranged on the large quenched and tempered shaft 3 and the small quenched and tempered shaft 4. Specifically, the angles of the paddles on the corresponding quenched and tempered shafts are different. Especially, the inclination directions of the paddles at both ends of the large quenched and tempered shaft 3 are opposite, and the inclination directions of the paddles at both ends of the small quenched and tempered shaft 4 are the same. First, when the large quenched and tempered shaft 3 and the small quenched and tempered shaft 4 rotate, the linear velocities of the corresponding paddles are different, and the mixing uniformity of the feed at each place is different. When stirring continuously, different shear forces will be generated at different positions, and the shear effect will be better; secondly, the inclined paddles at both ends provide different mixing forces, which is convenient for mixing during feeding. Especially during discharging, it will mix and stir part of the feed to prevent the coagulated large-sized mixed material from entering the extruder, causing problems affecting the size of the feed particles. Using this equipment, especially when fresh meat needs to be added as a feed raw material and strong shearing is required, the shear force is stronger, the shear effect is better, and it effectively prevents the problem that the large-sized mixed material affects the size of the feed particles in the subsequent process.

[0035] Preferably, a forward large paddle 5, a neutral large paddle 6 and a reverse large paddle 7 are installed on the large quenched and tempered shaft 3, a first reverse small paddle 8, a neutral small paddle 9 and a second reverse small paddle 10 are installed on the small quenched and tempered shaft 4. The forward large paddle 5 and the reverse large paddle 7 are located at both ends of the large quenched and tempered shaft 3, and the first reverse small paddle 8 and the second reverse small paddle 10 are located at both ends of the small quenched and tempered shaft 4. The three different large paddles on the large quenched and tempered shaft 3 and the three different small paddles on the small quenched and tempered shaft 4 are arranged correspondingly, and cooperate with shearing to provide different shear forces at different positions for efficient shearing and mixing of feed processing.

[0036] Preferably, a feed inlet 11 is provided at the middle position of one end of the large cylinder 1 and the small cylinder 2, and a discharge outlet 12 is provided at the other end. The forward large paddle 5 and the first reverse small paddle 8 are arranged at one end close to the feed inlet 11, and the reverse large paddle 7 and the second reverse small paddle 10 are arranged at one end close to the discharge outlet 12. The feed inlet 11 is located outside the forward large paddle 5. The forward large paddle inclines towards the side close to the feed inlet 11. The reverse large paddle 7, the first reverse small paddle 8 and the second reverse small paddle 10 incline away from the feed inlet 11. The neutral large paddle 6 and the neutral small paddle 9 are respectively perpendicular to the large conditioning shaft 3 and the small conditioning shaft 4. The numbers of the forward large paddle 5 and the first reverse small paddle 8 respectively account for 10%-20% of the numbers of the large paddles and small paddles. The numbers of the neutral large paddle 6 and the neutral small paddle 9 respectively account for 75%-85% of the numbers of the large paddles and small paddles. The numbers of the reverse large paddle 7 and the second reverse small paddle 10 are both two. The forward large paddle 5 and the first reverse small paddle 8 initially stir the incoming mixed material. The neutral large paddle 6 and the neutral small paddle 9 account for a relatively large proportion and are arranged correspondingly. When rotating, they provide a large shearing force and have a good shearing effect, which can achieve the function of shearing and mixing the raw materials. Finally, the discharge is controlled by the reverse large paddle 7 and the second reverse small paddle 10 to prevent problems such as uneven agglomeration of feed particles from occurring when large pieces of mixed material enter the next-stage extruder.

[0037] Preferably, the ratio of the diameter of the large cylinder 1 to the diameter of the small cylinder 2 ranges from 1.25:1 to 1.4:1. Within this ratio range, the proportion of the large cylinder 1 and the small cylinder 2 is optimal and the internal mixing effect of the materials is the best. The distance between the central sections of the large cylinder 1 and the small cylinder 2 is C. The ratio of the diameter of the small cylinder 2 to C ranges from 1.2:1 to 1.4:1. Combining with the ratio range of the diameter of the large cylinder 1 to the diameter of the small cylinder 2, the diameter of the small cylinder 2 is further limited internally, which can not only meet the strong shearing of the raw materials but also ensure the mixing effect, especially when fresh meat and other raw materials need to be mixed together to produce feed. The distance between the paddle on the large conditioning shaft 3 and the inner wall of the large cylinder 1 ranges from 8 mm to 12 mm, and the distance between the paddle on the small conditioning shaft 4 and the inner wall of the small cylinder 2 ranges from 7 mm to 10 mm. The above is the best gap between the paddle and the inner wall of the cylinder. Such a range enables the mixed material to be stirred by the paddle without adhering to the inner wall of the cylinder, and the shearing force of the paddle is the largest and the mixing effect is the best.

[0038] Preferably, a material addition port 13 is further provided on the large cylinder 1. The position of the material addition port 13 is close to the feed inlet 11. Other raw materials such as fresh meat can be added through the material addition port 13, which is convenient for stirring and shearing.

[0039] Preferably, it further includes a first coupling 14 and a first reduction motor 15, a second coupling 19 and a second reduction motor 20. The large conditioning shaft 3 is connected to the first coupling 14 and the first reduction motor 15, and the small conditioning shaft 4 is connected to the second coupling 19 and the second reduction motor 20. The two reduction motors provide different rotational speeds and different input torques, and better shearing and mixing effects can be achieved through separate control methods.

[0040] Preferably, other functional components can also be provided on the cylinder body, such as a vent port 16, a maintenance door 17, a steam addition port 18, etc.

[0041] As Figures 5 - 8 shown, an angle A is respectively formed between the forward large paddle 5, the reverse large paddle 7, the first reverse small paddle 8, the second reverse small paddle 10 and the corresponding neutral large paddle 6, neutral small paddle 9 in the inclined direction, and the size of the angle A is 14° - 16°. Through experimental comparison, when the forward large paddle 5, the reverse large paddle 7, the first reverse small paddle 8, the second reverse small paddle 10 are respectively set to form an angle of about 15° with the neutral large paddle 6 and the neutral small paddle 9, the effect of mixing raw materials at the feed port 11 is good. At the discharge port 12, it neither affects the discharge nor effectively prevents large pieces of mixed materials from entering the next link. Combining with the quantity ratio of different paddles can maximize the shearing time of the material and enhance the conditioning effect of the raw materials.

[0042] Preferably, the large conditioning shaft 3 and the small conditioning shaft 4 rotate in the same direction. If the large conditioning shaft 3 rotates forward, the small conditioning shaft 4 also rotates forward, and vice versa. The same rotation direction can maximize the shearing ability, maximize the mixing uniformity between raw materials such as fresh meat and other raw materials and steam, and has a self-cleaning effect, minimizing the fresh meat residue amount to the greatest extent.

[0043] Preferably, when processing high-moisture materials, that is, the moisture ratio range of the materials is 25% - 35% (such as when the fresh meat addition amount is high), the preferred rotational speed of the large conditioning shaft 3 is 100 - 150 r / m; the preferred rotational speed of the small conditioning shaft 4 is 850 - 950 r / m; when processing medium-moisture materials, that is, the moisture ratio range of the materials is 15% - 25% (such as when the fresh meat addition amount is general), the preferred rotational speed of the large conditioning shaft 3 is 100 - 150 r / m; the preferred rotational speed of the small conditioning shaft 4 is 550 - 750 r / m.

[0044] Working principle: The raw materials enter from the feed inlet 11. After other ingredients such as fresh meat enter from the material addition port 13, they are stirred and mixed by the cooperation of the forward large paddle 5 and the first reverse small paddle 8, and then enter the middle part of the conditioner. The neutral large paddle 6 and the neutral small paddle 9 cooperate to complete the shearing and mixing of the feed food. Finally, when discharging, under the combined action of the reverse large paddle 7 and the second reverse small paddle 10, it can prevent large pieces of mixed materials from entering the next link and prevent the problem of uneven particle size after the feed is formed.

[0045] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high shear biaxial conditioner, characterized in that: The invention comprises a large cylinder (1), a small cylinder (2), a large tempering shaft (3) and a small tempering shaft (4), wherein the large tempering shaft (3) and the small tempering shaft (4) are respectively installed in the large cylinder (1) and the small cylinder (2); at least three kinds of blades are respectively installed on the large tempering shaft (3) and the small tempering shaft (4), wherein the blades at both ends are arranged tilted, and the inclination directions of the blades at both ends of the large tempering shaft (3) are opposite, and the inclination directions of the blades at both ends of the small tempering shaft (4) are the same.

2. A high shear biaxial conditioner according to claim 1, characterized in that: The large tempered shaft (3) is provided with a forward thrust large blade (5), a neutral thrust large blade (6) and a reverse thrust large blade (7); the small tempered shaft (4) is provided with a first reverse thrust small blade (8), a neutral thrust small blade (9) and a second reverse thrust small blade (10); the forward thrust large blade (5) and the reverse thrust large blade (7) are located at two ends of the large tempered shaft (3); and the first reverse thrust small blade (8) and the second reverse thrust small blade (10) are located at two ends of the small tempered shaft (4).

3. A high shear biaxial conditioner according to claim 2, characterized in that: A feed port (11) is provided at the middle position of one end of the large cylinder (1) and the small cylinder (2), and a discharge port (12) is provided at the other end; the large forward thrust blade (5) and the first small reverse thrust blade (8) are provided at one end close to the feed port (11), and the large reverse thrust blade (7) and the second small reverse thrust blade (10) are provided at one end close to the discharge port (12); the feed port (11) is located on the outer side of the large forward thrust blade (5), the large forward thrust blade is inclined toward the side close to the feed port (11), and the large reverse thrust blade (7) and the first small reverse thrust blade (10) are inclined toward the side close to the feed port (11). (8) and the second reverse thrust small blade (10) are inclined toward the side away from the feed port (11), the neutral large blade (6) and the neutral small blade (9) are respectively perpendicular to the large tempering axis (3) and the small tempering axis (4); the number of the forward thrust large blade (5) and the first reverse thrust small blade (8) respectively accounts for 10%-20% of the number of large blades and small blades, the number of the neutral large blade (6) and the neutral small blade (9) respectively accounts for 75%-85% of the number of large blades and small blades, and the number of the reverse thrust large blade (7) and the second reverse thrust small blade (10) are both two.

4. A high shear biaxial conditioner according to claim 3, characterized in that: The forward thrust large blade (5), the reverse thrust large blade (7), the first reverse thrust small blade (8), and the second reverse thrust small blade (10) respectively form an angle A with the corresponding neutral large blade (6) and neutral small blade (9) in the inclined direction, and the size of the angle A is 14°-16°.

5. A high shear biaxial conditioner according to claim 1, characterized in that: The ratio of the diameter of the large cylinder (1) to the diameter of the small cylinder (2) is in the range of 1.25:1 to 1.4:

1.

6. A high shear biaxial conditioner according to claim 1, characterized in that: The distance between the cross-sectional centers of the large cylinder (1) and the small cylinder (2) is C, and the ratio between the diameter of the small cylinder (2) and C is in the range of 1.2:1 to 1.4:

1.

7. A high shear biaxial conditioner according to claim 1, characterized in that: The distance between the blades on the large tempering shaft (3) and the inner wall of the large cylinder (1) is in the range of 8 mm to 12 mm, and the distance between the blades on the small tempering shaft (4) and the inner wall of the small cylinder (2) is in the range of 7 mm to 10 mm.

8. A high shear biaxial conditioner according to claim 3, characterized in that: The large cylinder (1) is also provided with a material adding port (13), and the material adding port (13) is located close to the material feeding port (11).

9. A high shear biaxial conditioner according to claim 1, characterized in that: The large tempering shaft (3) and the small tempering shaft (4) rotate in the same direction.

10. The high shear biaxial conditioner according to claim 1, characterized in that: It also includes a first coupling (14) and a first reduction motor (15), a second coupling (19) and a second reduction motor (20), wherein the large quenched and tempered shaft (3) is connected to the first coupling (14) and the first reduction motor (15), and the small quenched and tempered shaft (4) is connected to the second coupling (19) and the second reduction motor (20).

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