A kind of sea cucumber feed with puffing machine

Abstract

This invention belongs to the technical field of feed production equipment, and particularly relates to an extruder for sea cucumber feed. This invention provides an extruder for sea cucumber feed, which, by assembling an external heating jacket, rotating rod, spiral blades, feed inlet, discharge outlet, pressure ring unit, temperature measuring ring unit, water cooling ring unit, and lifting and opening box unit on a transverse cylinder, enables the following: 1. The pressure ring unit can effectively and appropriately block the material, increasing the internal pressure of the extruder and ensuring sufficient extrusion even under relatively low temperature conditions; 2. The water cooling ring unit can be opened as needed, ensuring that the material inside the extruder is always at the relatively low temperature conditions suitable for sea cucumber feed production, preventing large-scale inactivation of beneficial intestinal bacteria in the material.

Description

Technical Field

[0001] This invention belongs to the technical field of feed production equipment, and particularly relates to an extruder for sea cucumber feed. Background Technology

[0002] Sea cucumber feed refers to a specialized feed used to feed farmed sea cucumbers. Generally, the raw materials for sea cucumber feed can include: seaweed, sea mud, soybean meal, fish meal, and nutritional additives. Furthermore, the production methods for sea cucumber feed are largely the same as other common aquatic feeds, mainly including: mixing, grinding, conditioning, extrusion, and drying.

[0003] On the other hand, higher-quality sea cucumber feed also uses intestinal probiotics to regulate the intestinal microecological environment of sea cucumbers, enhance their immunity, and ultimately promote their growth. Therefore, in the production process of the aforementioned high-quality sea cucumber feed, it is especially necessary to protect the activity of intestinal probiotics and prevent them from being deactivated on a large scale due to high temperatures.

[0004] Therefore, correspondingly, more advanced low-temperature puffing technology emerged later, with a relatively low puffing temperature, generally only 60-80℃, which is far lower than the puffing temperature of more than 100℃ of existing ordinary puffing technology.

[0005] However, a problem arises because the sea cucumber feed is prone to incomplete expansion in the extruder due to the relatively low extrusion temperature. The common solution to this problem is to appropriately increase the extrusion pressure and extend the extrusion time. In other words, not all extruders are suitable for low-temperature extrusion technology.

[0006] For example, Chinese utility model patent with patent publication number CN218977985U and publication date of May 9, 2023 discloses a new type of fish feed processing extruder, including: an extrusion box and a feeding cylinder located at the top of it. The feeding cylinder is inclinedly arranged at the top of the extrusion box. A feeding screw is arranged inside the feeding cylinder. A preheating plate is arranged on one side of the inside of the feeding cylinder. Protrusion blocks are arranged inside the extrusion box. Several protrusion blocks are distributed in a rectangular array on the inner wall of the extrusion box. A spiral compression rod is arranged inside the extrusion box. A dispersing blade is fixedly connected to one side of the spiral compression rod through a connecting rod. A heating plate is arranged inside the side wall of the extrusion box.

[0007] The processing extruder in this utility model patent has the following structure, principle and advantages: The raw material enters the extrusion box, and the dispersing blades disperse the raw material to prevent it from clumping, so that the raw material flows into the spiral compression rod more quickly. The raw material is spirally compressed at the spiral compression rod in the extrusion box. The protrusions on the inner wall of the extrusion box cooperate with the spiral compression rod to make the raw material more effectively squeezed.

[0008] However, when this processing extruder is applied to low-temperature extrusion technology, it still has at least two shortcomings, which are also the technical problems that this invention aims to solve:

[0009] First, its method of increasing puffing pressure relies solely on the active feeding effect of the feed screw and the passive, small-amplitude squeezing effect of the protrusions, which is far from sufficient.

[0010] Secondly, it lacks a cooling function. Once the puffing temperature is too high, it cannot be cooled and regulated, which can easily lead to the large-scale inactivation of intestinal probiotics.

[0011] Therefore, in summary, there is an urgent need for a new type of extruder with a relatively large adjustment of extrusion pressure and an additional cooling function, in order to combine low-temperature extrusion technology to produce sea cucumber feed products containing intestinal probiotics. Summary of the Invention

[0012] This invention provides an extruder for sea cucumber feed, which, by assembling an external heating jacket, a rotating rod, spiral blades, a feed inlet, a discharge outlet, a pressure ring unit, a temperature measuring ring unit, a water cooling ring unit, and a lifting and opening box unit on a transverse cylinder, enables the following: 1. The pressure ring unit can effectively and appropriately block the material, increasing the internal pressure of the extruder and ensuring sufficient extrusion even under relatively low temperature conditions; 2. The water cooling ring unit can be opened as needed, ensuring that the material inside the extruder is always at the relatively low temperature conditions suitable for sea cucumber feed production, avoiding large-scale inactivation of intestinal probiotics in the material.

[0013] The technical solution adopted by the present invention to solve the above problems is: an extruder for sea cucumber feed, the structure of which includes a transverse cylinder, an outer heating jacket, a rotating rod, a spiral blade, a feed inlet, and a discharge outlet, and further includes a plurality of pressure ring units disposed on the rotating rod for blocking materials, a temperature measuring ring unit disposed on the transverse cylinder and laterally supported by the pressure ring units, a water cooling ring unit disposed on the transverse cylinder and laterally supported by the pressure ring units, and a lifting opening box unit inserted into the discharge outlet, laterally supported by the pressure ring units, and used to adjust the number of effective discharge holes.

[0014] A further preferred technical solution is that the pressure ring unit includes a ring sleeved on the rotating rod and used to allow material to pass between the outer ring surface and the inner ring surface of the transverse cylinder.

[0015] A further preferred technical solution is that the pressure ring unit further includes a reinforcing connecting pipe disposed on the ring, sleeved with the rotating rod, and used to insert and engage the temperature measuring ring unit and the water cooling ring unit.

[0016] A further preferred technical solution is that the temperature measuring ring unit includes a ring block sleeved on the reinforcing connecting pipe and laterally supported by the ring, a radial groove on the vertical side of the ring block away from the ring, and a thermometer inserted into the transverse cylinder and the radial groove.

[0017] A further preferred technical solution is that the water-cooled ring unit includes a hollow ring sleeved on the reinforcing connecting pipe and laterally supported by the ring, and two water pipes inserted into the transverse cylinder and connected to the hollow ring.

[0018] A further preferred technical solution is that the pressure ring unit further includes a protruding ring disposed on the vertical side of the ring, and ball bearings embedded in the vertical side of the protruding ring and used for lateral support of the temperature measuring ring unit, the water cooling ring unit, or the lifting opening box unit.

[0019] A further preferred technical solution is that the lifting and opening box unit includes a rectangular box body that is inserted into the discharge port, faces outward, and is laterally supported by the ring, and a discharge hole is provided on the vertical side of the rectangular box body away from the ring.

[0020] A further preferred technical solution is that the transverse cylinder and the outer heating jacket are also provided with paired openings for installing the temperature measuring ring unit or the water cooling ring unit.

[0021] A further preferred technical solution is that the number of the pressure ring units is 4.

[0022] A further preferred technical solution is that the spiral blades are in the form of four segments, which are respectively arranged on the side of the four pressure ring units near the feed inlet. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a schematic diagram showing the position of the helical blades in this invention.

[0025] Figure 3 This is a schematic diagram of the position and structure of the pressure ring unit in this invention.

[0026] Figure 4 This is a schematic diagram of the temperature measuring ring unit in this invention.

[0027] Figure 5 This is a schematic diagram showing the location and structure of the water-cooled ring unit in this invention.

[0028] Figure 6This is a schematic diagram illustrating the usage of the water-cooled ring unit in this invention.

[0029] Figure 7 This is a schematic diagram illustrating the use of paired openings in this invention.

[0030] Figure 8 This is a schematic diagram illustrating the usage of the lifting and opening box unit in this invention.

[0031] Figure 9 This is a schematic diagram of the lifting and opening box unit in this invention.

[0032] The meanings of the markings in the diagram are as follows:

[0033] Water flow direction a, puffed material discharge direction b;

[0034] Horizontal cylinder 11, outer heating jacket 12, rotating rod 13, spiral blade 14, feed inlet 15, discharge outlet 16;

[0035] Pressure ring unit 1, temperature measuring ring unit 2, water cooling ring unit 3, lifting opening box unit 4, paired openings 5;

[0036] Circular ring 101, reinforcing connecting pipe 102, circular ring block 201, radial groove 202, thermometer 203, hollow circular ring 301, water pipe 302, protruding ring 103, ball bearing 104, rectangular box 401, discharge hole 402. Detailed Implementation

[0037] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

[0038] As attached Figure 1-9 As shown, a sea cucumber feed extruder has the following structure: a transverse cylinder 11, an outer heating jacket 12, a rotating rod 13, a spiral blade 14, a feed inlet 15, and a discharge outlet 16. It also includes several pressure ring units 1 disposed on the rotating rod 13 for blocking materials, a temperature measuring ring unit 2 disposed on the transverse cylinder 11 and laterally supported by the pressure ring units 1, a water cooling ring unit 3 disposed on the transverse cylinder 11 and laterally supported by the pressure ring units 1, and a lifting opening box unit 4 inserted into the discharge outlet 16, laterally supported by the pressure ring units 1, and used to adjust the number of effective discharge holes.

[0039] In this embodiment, the external heating jacket 12 provides heat for the puffing operation, and the spiral blades 14 provide pressure for the puffing operation. Finally, puffed particles can be obtained at the opening of the lifting and opening box unit 4. These particles can then be crushed, sprayed with oil, cooled, etc., as needed to produce sea cucumber feed products.

[0040] The pressure ring unit 1 and the rotating rod 13 are first sleeved together and then welded together, which serves two purposes:

[0041] First, it blocks the material, greatly reducing the relatively large material passage area inside the transverse cylinder 11, allowing the material to pass only between the outer ring surface of the pressure ring unit 1 and the inner ring surface of the transverse cylinder 11, thereby compensating for the insufficient expansion of the low-temperature expansion technology under low-temperature conditions.

[0042] Secondly, it provides a downstream support effect for the temperature measuring ring unit 2, the water-cooling ring unit 3, and the lifting opening box unit 4 in the direction of material movement. This ensures that the temperature measuring ring unit 2 and the water-cooling ring unit 3 are fixed after installation, and that the lifting opening box unit 4 can only be adjusted by inserting and removing it inwards and outwards, and will not be pushed, bent, or even broken by the forward movement of the material.

[0043] Of course, this requires the entire extruder to have greater structural strength, and the motor on the rotating rod 13 also needs to have greater power.

[0044] In addition, the temperature measuring ring unit 2 can be used by operators to manually observe and record data periodically, or it can be connected to an external computer for more advanced observation, recording, and alarm prompts.

[0045] The water-cooling ring unit 3 includes a water inlet and a water outlet, ensuring that it can be activated as needed when the material temperature is higher, and the water cooling intensity is flexibly adjustable. Furthermore, the water-cooling ring unit 3 can also be connected to the temperature-measuring ring unit 2 via a computer, further enhancing the automation and intelligence of the water-cooling operation.

[0046] Finally, the lifting and opening box unit 4 also has two functions:

[0047] First, the opening position is the final discharge position of the extruder. Extruded particles of different lengths can be obtained at the opening position, ensuring that the basic function of extrusion can be effectively carried out.

[0048] Secondly, only the openings located inside the transverse cylinder 11 are valid discharge holes, while those located outside the transverse cylinder 11 are invalid discharge holes. This allows for a relatively small adjustment of the internal expansion pressure of the transverse cylinder 11.

[0049] Of course, the increased expansion pressure of the lifting and opening box unit 4 comes at a cost, as it reduces the discharge speed. Therefore, its adjustment effect is only auxiliary and relatively minor. The maximum expansion pressure inside the transverse cylinder 11 is mainly achieved through several pressure ring units 1.

[0050] The pressurizing ring unit 1 includes a ring 101 sleeved on the rotating rod 13 and used to pass material between the outer ring surface and the inner ring surface of the transverse cylinder 11.

[0051] In this embodiment, the inner ring surface of the ring 101 is welded to the rotating rod 13, and the distance between its outer ring surface and the inner ring surface of the transverse cylinder 11 is 2-10cm to ensure a certain maximum expansion pressure effect.

[0052] The pressurizing ring unit 1 also includes a reinforcing connecting pipe 102 disposed on the ring 101, sleeved on the rotating rod 13, and used to insert and engage the temperature measuring ring unit 2 and the water cooling ring unit 3.

[0053] In this embodiment, the reinforcing connecting pipe 102 and the ring 101 are integrally formed. The inner ring surface of the reinforcing connecting pipe 102 is also welded to the rotating rod 13, and its outer ring surface is used to fit the temperature measuring ring unit 2 or the water cooling ring unit 3, ensuring that the temperature measuring ring unit 2 and the water cooling ring unit 3 are supported and held in place laterally and are unlikely to have harmful displacement in the vertical direction. Therefore, its fixing effect is stable and safe enough.

[0054] The temperature measuring ring unit 2 includes a ring block 201 sleeved on the reinforcing connecting pipe 102 and laterally supported by the ring 101, a radial groove 202 disposed on the vertical side of the ring block 201 away from the ring 101, and a thermometer 203 inserted into the transverse cylinder 11 and the radial groove 202.

[0055] In this embodiment, the thermometer 203 is a temperature sensor commonly used in industrial production in the prior art, or a bimetallic thermometer that can be directly read manually.

[0056] Furthermore, the annular block 201 is completely fixed relative to the transverse cylinder 11. The function of the annular block 201 is to support the thermometer 203 downstream in the material forward direction, so as to prevent the thermometer 203 from being squeezed or broken by the material.

[0057] Furthermore, the radial groove 202 merely engages and supports the thermometer 203, rather than fully inserting it into the thermometer 203, ensuring that the thermometer 203 can still contact the material and guarantee that its temperature reading is sufficiently accurate.

[0058] Finally, the annular block 201 is thick in the middle and thin on the sides, which ensures that the material can flow away relatively easily near the thermometer 203, avoiding the thermometer 203 from always detecting the same part of the material, and thus improving the accuracy of the temperature reading.

[0059] The water-cooled ring unit 3 includes a hollow ring 301 sleeved on the reinforcing connecting pipe 102 and laterally supported by the ring 101, and two water pipes 302 inserted into the transverse cylinder 11 and connected to the hollow ring 301.

[0060] In this embodiment, one of the water pipes 302 is connected to a water pump, and the other is connected to a water tank. When the thermometer 203 detects that the material temperature is relatively too high, the water pump can be turned on as needed, and the cooling water flow rate can be adjusted to ensure that the reading of the thermometer 203 is always within the required range of a relatively low temperature.

[0061] The hollow ring 301 and the water pipe 302 are stationary relative to the transverse cylinder 11. The ring 101 supports and holds the hollow ring 301 downstream in the material flow direction to prevent the water-cooled ring unit 3 from shifting and to prevent the water pipe 302 from breaking.

[0062] The pressurizing ring unit 1 also includes a protruding ring 103 disposed on the vertical side of the ring 101, and a ball bearing 104 embedded on the vertical side of the protruding ring 103 and used to laterally support the temperature measuring ring unit 2, the water cooling ring unit 3, or the lifting opening box unit 4.

[0063] In this embodiment, the function of the ball bearing 104 is to change the original sliding friction between the ring 101 and the ring block 201, and between the ring 101 and the hollow ring 301, into rolling friction, which can greatly reduce the friction force, thereby improving the efficiency of the rotary motor and avoiding the generation of a large amount of heat at the ring 101.

[0064] In addition, the protruding ring 103 is provided with 1-2 rings of the ball bearings 104. The function of the protruding ring 103 is to avoid the ball bearings 104 needing to have ball bearing grooves which would reduce the structural strength of the ring 101. After all, the ring 101 is always subjected to a large bending moment force, and its shape cannot be bent or deformed.

[0065] The lifting and opening box unit 4 includes a rectangular box 401 that is inserted into the discharge port 16, faces outward, and is laterally supported by the ring 101, and a discharge hole 402 that is provided on the vertical side of the rectangular box 401 away from the ring 101.

[0066] In this embodiment, the discharge hole 402 located inside the discharge port 16 and relatively high is the effective discharge hole. When the rectangular box 401 is pulled outward appropriately, the number of effective discharge holes decreases, and the expansion pressure inside the transverse cylinder 11 can be appropriately and slightly increased. This is an auxiliary adjustment method for increasing pressure in low-temperature expansion technology.

[0067] Conversely, the rectangular box 401 is pushed inwards until it touches the rotating rod 13 or the reinforcing connecting pipe 102, which will achieve the fastest discharge speed.

[0068] The circular ring 101 is also downstream in the material flow direction, supporting the rectangular box 401 and preventing it from deforming and breaking. This support can be achieved through direct contact or indirectly by the protruding ring 103 and the ball bearings 104.

[0069] The transverse cylinder 11 and the outer heating jacket 12 are also provided with paired openings 5 ​​for installing the temperature measuring ring unit 2 or the water cooling ring unit 3.

[0070] In this embodiment, the portions of the thermometer 203 and the water pipe 302 located inside the outer heating jacket 12 are not easily damaged by high temperatures, or appropriate heat insulation protection is provided for these portions.

[0071] The number of pressure ring units 1 is 4.

[0072] In this embodiment, along the direction of material flow, the sequence is as follows: the first water-cooled ring unit 3, the temperature measuring ring unit 2, the second water-cooled ring unit 3, and the lifting and opening box unit 4.

[0073] The two water-cooled ring units 3 are independent of each other and can be turned on as needed.

[0074] The number of spiral blades 14 is 4 segments, which are respectively arranged on the side of the 4 pressure ring units 1 near the feed inlet 15.

[0075] In this embodiment, in the paired spiral blades 14 and pressurizing ring unit 1, the spiral blades 14 are upstream of the material flow direction and the pressurizing ring unit 1 is downstream.

[0076] Among them, the most downstream, i.e., attached Figure 1 The rightmost pressure ring unit 1 is close to the end plate of the transverse cylinder 11 to prevent a large amount of material that is difficult to extrude from accumulating there.

[0077] Finally, there is no limitation on the length of each of the four spiral blades 14; they can be selected as needed.

[0078] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of the present invention. These are non-inventive modifications and are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A sea cucumber feed extruder, comprising a transverse cylinder (11), an outer heating jacket (12), a rotating rod (13), spiral blades (14), a feed inlet (15), and a discharge outlet (16), characterized in that: It also includes several pressure ring units (1) set on the rotating rod (13) and used to block materials, a temperature measuring ring unit (2) set on the transverse cylinder (11) and supported laterally by the pressure ring units (1), a water cooling ring unit (3) set on the transverse cylinder (11) and supported laterally by the pressure ring units (1), and a lifting opening box unit (4) inserted into the discharge port (16) and supported laterally by the pressure ring units (1) for adjusting the number of effective discharge holes. The pressurizing ring unit (1) includes a ring (101) sleeved on the rotating rod (13) and used to pass material between the outer ring surface and the inner ring surface of the transverse cylinder (11). The pressurizing ring unit (1) also includes a reinforcing connecting pipe (102) disposed on the ring (101), sleeved on the rotating rod (13), and used to insert and engage the temperature measuring ring unit (2) and the water cooling ring unit (3). The temperature measuring ring unit (2) includes a ring block (201) sleeved on the reinforcing connecting pipe (102) and laterally supported by the ring (101), a radial groove (202) disposed on the vertical side of the ring block (201) away from the ring (101), and a thermometer (203) inserted into the transverse cylinder (11) and the radial groove (202).

2. The extruder for sea cucumber feed according to claim 1, characterized in that: The water-cooled ring unit (3) includes a hollow ring (301) sleeved on the reinforcing connecting pipe (102) and laterally supported by the ring (101), and two water pipes (302) inserted into the transverse cylinder (11) and connected to the hollow ring (301).

3. The extruder for sea cucumber feed according to claim 1, characterized in that: The pressurizing ring unit (1) also includes a protruding ring (103) disposed on the vertical side of the ring (101), and a ball bearing (104) embedded on the vertical side of the protruding ring (103) and used to laterally support the temperature measuring ring unit (2), the water cooling ring unit (3), or the lifting opening box unit (4).

4. The extruder for sea cucumber feed according to claim 1, characterized in that: The lifting and opening box unit (4) includes a rectangular box (401) which is inserted into the discharge port (16), faces outward, and is laterally supported by the ring (101), and a discharge hole (402) is provided on the vertical side of the rectangular box (401) away from the ring (101).

5. The extruder for sea cucumber feed according to claim 1, characterized in that: The transverse cylinder (11) and the outer heating jacket (12) are also provided with paired openings (5) for installing the temperature measuring ring unit (2) or the water cooling ring unit (3).

6. The extruder for sea cucumber feed according to claim 1, characterized in that: The number of the pressurizing ring units (1) is 4.

7. The extruder for sea cucumber feed according to claim 6, characterized in that: The number of spiral blades (14) is 4, which are respectively set on the side of the 4 pressure ring units (1) near the feed inlet (15).

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