Elongated soft granular feed processing equipment for eel and processing technology thereof

Abstract

This application discloses a processing equipment and process for eel puffed soft pellet compound feed, relating to the technical field of puffing equipment. The equipment includes an puffing body with a discharge port; a discharge pipe fixed to the puffing body, the discharge pipe having a transmission hole communicating with the discharge port; a receiving box with an open top, the side of the discharge pipe away from the discharge port located above the receiving box; multiple atomizing nozzles located on the discharge pipe and near the discharge port, evenly spaced circumferentially; an oil supply tank located on the puffing body, the oil supply tank having an oil supply pipe communicating with the atomizing nozzles; and an oil collecting section located on the outer periphery of the discharge pipe and away from the discharge port, the oil collecting section having an oil collecting trough; the discharge pipe having multiple oil inlets communicating with the oil collecting troughs; and the oil collecting section having an oil delivery pipe communicating with the oil inlets and transmitting oil to the oil supply tank. This application can improve the uniformity of oil distribution in the feed.

Description

Technical Field

[0001] This application relates to the technical field of extrusion equipment, and in particular to a processing equipment and process for extruded soft pellet feed for eels. Background Technology

[0002] Eel feed is usually in powder form. However, powdered feed has problems such as poor water resistance, easy loss into the water, and easy nutrient loss. Therefore, feed is gradually being made into a granular structure.

[0003] During production, feed is usually expanded using an extruder to obtain pelleted feed, and then the pelleted feed is sprayed with oil to increase its fat content and taste.

[0004] Traditional feed extrusion involves high-temperature extrusion, resulting in feed pellets with low moisture content that easily absorb oil. However, in eel farming, it has been found that the high-temperature extruded feed is lighter and tends to float on the water surface. Since eels feed in groups, the ripples created when they feed push some of the floating feed away from the feeding point and disperse it in all directions, leading to waste. Furthermore, the scattered feed may also pollute the water.

[0005] Therefore, moistened soft pellet feed is gaining increasing popularity in eel farming. Soft pellet feed undergoes low-temperature extrusion, resulting in pellets with high moisture content, soft texture, and a certain degree of stickiness. Before oiling, the soft pellets tend to stick together. Applying oil at this stage may result in some areas of the pellets not being in contact with the oil, potentially leading to uneven oil distribution. Summary of the Invention

[0006] To improve the uniformity of fat distribution in feed, this application provides a processing equipment and process for eel puffed soft pellet compound feed.

[0007] In a first aspect, this application provides a processing equipment for eel puffed soft pellet compound feed, which adopts the following technical solution:

[0008] A processing device for extruded soft pellet feed for eels, comprising:

[0009] The extruder body has a discharge port;

[0010] The discharge pipe is fixed to the extruder body, and the discharge pipe has a transmission hole that communicates with the discharge port;

[0011] The receiving box has an open top, and the discharge pipe is located above the receiving box on the side away from the discharge port;

[0012] Atomizing nozzles are disposed on the discharge pipe and near the discharge port. There are multiple atomizing nozzles and they are evenly spaced along the circumference.

[0013] An oil supply tank is installed in the extruder body, and the oil supply tank is provided with an oil supply pipe connected to the atomizing nozzle;

[0014] An oil collecting section is located on the outer periphery of the discharge pipe and away from the discharge port, and an oil collecting groove is formed inside the oil collecting section.

[0015] The discharge pipe has multiple oil inlet holes that connect to the oil collection tank, and the oil collection section is provided with an oil delivery pipe that communicates with the oil inlet holes and delivers grease to the oil supply tank.

[0016] By adopting the above technical solution, during production, the extruder body sprays feed pellets out through the discharge port. The pellets then enter the transmission hole and are atomized by the spray nozzle, completing the oil spraying process. The feed pellets then flow along the discharge pipe into the collection box, while excess oil from the spraying process enters the oil collection trough through the oil inlet and is then transported to the oil supply tank via the oil delivery pipe, facilitating oil recycling. The entire process is simple; the oil spraying occurs simultaneously with the feed pellets, increasing the spraying area and improving the uniformity of oil distribution within the feed.

[0017] Optionally, the oil collection part includes an oil collection tank, a through-hole column, a linkage bar, and a drive cylinder;

[0018] The oil collection tank is disposed on the outer wall of the discharge pipe;

[0019] The through-hole column corresponds to the oil inlet hole one by one. The through-hole column slides up and down in the oil inlet hole. The linkage bar links the through-hole column.

[0020] The drive cylinder is located in the oil collection tank. The piston rod of the drive cylinder is connected to the linkage bar. The drive cylinder drives the through-hole column to slide towards the transmission hole to the oil inlet orifice.

[0021] By adopting the above technical solution, the driving cylinder drives the linkage bar to slide up and down, so that the through-hole column can clear the oil inlet hole.

[0022] Optionally, the discharge pipe includes a pipe body, a connecting ring, a transmission assembly, and a hole cleaning assembly;

[0023] The tube is fixed to the extruder body, and the connecting ring is rotatably connected to the inner peripheral side wall of the tube. The connecting ring has multiple oil collection areas along the circumferential direction.

[0024] The oil inlet includes a first oil inlet and a second oil inlet. The first oil inlet is formed in the connecting ring. There are multiple first oil inlets, which are disposed in the oil collection area.

[0025] The second oil inlet is located in the pipe body, and the first oil inlet and the second oil inlet are coaxially arranged when they are connected to each other;

[0026] The transmission assembly is disposed on the pipe body. When the through-hole column moves away from the transmission hole, the transmission assembly drives the connecting ring to rotate so that the first oil inlet hole and the second oil inlet hole of the next adjacent oil collection area are aligned.

[0027] The hole cleaning assembly is disposed on the pipe body and located above the second oil inlet hole. When the connecting ring rotates, the hole cleaning assembly clears the first oil inlet hole it passes through.

[0028] By adopting the above technical solution, the through-hole column pushes the feed debris in the oil inlet into the transmission hole. At this time, some of the debris moves towards the receiving box along with the passing feed particles, while some debris is squeezed back into the oil inlet by the passing feed particles when the through-hole column moves away from the first oil inlet. At this time, the transmission component drives the connecting ring to move, so that the blocked first oil inlet moves towards the cleaning component. After being cleaned by the cleaning component, the first oil inlet moves to be aligned with the second oil inlet, allowing the grease to enter the oil collection tank.

[0029] Optionally, the transmission assembly includes a transmission rope, a transmission ring, a transmission coil spring, a first sliding tooth, a first support tooth, a second sliding tooth, and a second support tooth.

[0030] The transmission ring is rotatably connected to the tube body and coaxially arranged with the connecting ring. The transmission coil spring is disposed inside the transmission ring, with one end of the transmission coil spring engaged with the inner wall of the transmission ring and the other end engaged with the tube body.

[0031] The transmission rope passes through the tube body and is wrapped around the outer periphery of the transmission ring. One end of the transmission rope is fixed to the transmission ring, and the other end is fixed to the linkage bar.

[0032] The first sliding teeth are multiple and are arranged circumferentially at the end of the connecting ring away from the transmission ring; the first supporting teeth are arranged on the tube body; and the first sliding teeth mesh with the first supporting teeth.

[0033] The second sliding teeth are multiple and are arranged circumferentially on one end of the connecting ring near the transmission ring, and the second supporting teeth are arranged at the end of the transmission ring. The second sliding teeth and the second supporting teeth mesh with each other.

[0034] When the through-hole post is away from the transmission hole and the transmission ring releases the transmission rope, the second support tooth supports the second sliding tooth in one direction, and at this time the first sliding tooth slides on the first support tooth.

[0035] When the through-hole post is close to the transmission hole and the transmission ring is wrapped around the transmission rope, the first support tooth supports the sliding tooth in one direction, and the second support tooth slides on the second sliding tooth.

[0036] By adopting the above technical solution, when the through-hole column is far away from the transmission hole, the transmission rope pulls the transmission ring to rotate, which in turn drives the connecting ring to enter the rotation state.

[0037] Optionally, the hole cleaning assembly includes a hole cleaning ball and a hole cleaning spring;

[0038] An installation groove is formed on the inner wall of the pipe. The installation groove is located above the second oil inlet hole. The cleaning ball slides up and down in the installation groove. The diameter of the groove opening is smaller than the diameter of the cleaning ball.

[0039] The hole-cleaning spring is installed in the mounting groove, and the hole-cleaning spring drives the hole-cleaning ball portion to protrude out of the mounting groove;

[0040] When the first oil inlet hole is aligned with the mounting groove, the cleaning ball passes through the first oil inlet hole into the transmission hole.

[0041] By adopting the above technical solution, when the first oil inlet hole is aligned with the mounting groove, the cleaning spring pushes the cleaning ball through the first oil inlet hole to push out the debris in the first oil inlet hole, reducing the possibility of blockage of the first oil inlet hole.

[0042] Optionally, there are multiple sets of the second oil inlet holes, each set having multiple second oil inlet holes spaced apart circumferentially, and the second oil inlet holes of adjacent sets being staggered from each other.

[0043] By adopting the above technical solution, the possibility of grease flowing into the receiving box is reduced.

[0044] Optionally, the discharge pipe moves downward along an arc-shaped trajectory away from the extruder body.

[0045] By adopting the above technical solution, the wall of the discharge pipe buffers the feed particles, reducing the impact force when the feed particles enter the receiving box and reducing the possibility of the feed particles sticking together after entering the receiving box.

[0046] Secondly, this application provides a processing technology for eel puffed soft pellet compound feed, which adopts the following technical solution:

[0047] A processing method for extruded soft pellet feed for eels includes the following steps:

[0048] S1: Raw material mixing;

[0049] S2: The mixed raw materials are ultra-finely pulverized and sieved;

[0050] S3: Steam conditioning of the sieved raw material;

[0051] S4: The conditioned raw material is puffed and sprayed with oil through the puffing machine.

[0052] By adopting the above technical solution, during the production of soft pellet compound feed, the extrusion of the extruder body improves the uniformity of oil distribution in the feed pellets and enhances the consistency between the feed pellets.

[0053] In summary, this application includes at least one of the following beneficial effects:

[0054] 1. When the extruder sprays out feed pellets, oil spraying is performed before the feed pellets gather to reduce the possibility of the feed pellets sticking together after gathering and affecting the oil spraying effect.

[0055] 2. The through-hole column slides up and down in the oil inlet hole to clear the oil inlet hole and reduce the possibility of blockage. Attached Figure Description

[0056] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0057] Figure 2 This is a schematic diagram of the atomizing nozzle in an embodiment of this application;

[0058] Figure 3 This is a schematic diagram of the through-hole column before cleaning in an embodiment of this application;

[0059] Figure 4 This is a schematic diagram of the internal cross-section of the tube body according to an embodiment of this application;

[0060] Figure 5 This is a schematic diagram of the internal structure of the tube in an embodiment of this application;

[0061] Figure 6 yes Figure 5 Enlarged schematic diagram of part A.

[0062] Reference numerals: 1. Extruder body; 11. Discharge port; 2. Pipe body; 21. Transmission hole; 22. Atomizing nozzle; 23. Oil inlet; 231. First oil inlet; 232. Second oil inlet; 24. Connecting ring; 241. Oil collection area; 25. Mounting groove; 26. Rotating groove; 27. Transmission groove; 28. Sliding groove; 3. Oil supply tank; 31. Oil supply pump; 32. Oil supply pipe; 4. Receiving box; 5. Oil delivery pipe; 51. Oil collection trough; 52. Oil collection tank; 53. Through-hole column; 54. Linkage bar; 55. Drive cylinder; 6. Transmission rope; 61. Transmission ring; 62. Transmission coil spring; 63. First sliding tooth; 64. First support tooth; 65. Second sliding tooth; 66. Second support tooth; 7. Cleaning ball; 71. Cleaning spring. Detailed Implementation

[0063] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0064] This application discloses a processing equipment for eel extruded soft pellet compound feed. See also: Figure 1 and Figure 2 The processing equipment includes an extruder body 1. The extruder body 1 is placed on the ground and is used to extrude raw materials at low temperature to form soft pellet feed. The extruder body 1 has a discharge port 11 from which the low-temperature extruded soft pellet feed is ejected.

[0065] The processing equipment also includes a discharge pipe and a receiving box 4. The discharge pipe is fixed to the extruder body 1. The discharge pipe has a transmission hole 21, which is connected to the discharge port 11. The feed ejected from the discharge port 11 enters the transmission hole 21 and is then transported along the extension direction of the discharge pipe. The discharge pipe has a circular tube structure and extends downward away from the extruder body 1 in an arc-shaped trajectory to reduce the impact force when the feed leaves the discharge pipe. The receiving box 4 is located on the ground and has an open top. The side of the discharge pipe away from the extruder body 1 extends to the open top of the receiving box 4. After the feed leaves the discharge pipe, it is collected by the receiving box 4. The feed is buffered by the pipe wall, which reduces the impact force when the feed enters the receiving box 4 and reduces the adhesion between the collected feed particles.

[0066] The processing equipment also includes atomizing nozzles 22 and an oil supply tank 3. The atomizing nozzles 22 are fixed to the inner circumferential wall of the discharge pipe and are located near the discharge port 11. The oil spray nozzles 22 are inclined away from the extruder body 1, and multiple atomizing nozzles 22 are spaced apart circumferentially. The oil supply tank 3 is placed on the ground and is used to store grease. An oil supply pump 31 is fixed inside the oil supply tank 3, and the oil supply pump 31 is connected to an oil supply pipe 32, which is connected to the atomizing nozzles 22. During production, the oil supply pump 31 draws grease from the oil supply tank 3 and then transmits the grease to the atomizing nozzle 22 through the oil supply pipe 32. The atomizing nozzle 22 atomizes the grease and sprays it out. At this time, the feed sprayed from the discharge port 11 passes through the atomized grease, which helps to complete the oil spraying work before the feed particles stick together. At the same time, the oil spraying is completed as the feed leaves the discharge port 11, which reduces the stickiness of the outer periphery of the feed particles and facilitates the collection and storage of feed particles.

[0067] See Figure 2 and Figure 3 The processing equipment also includes an oil collecting section, which is located on the discharge pipe and away from the extruder body 1. Multiple oil inlet holes 23 are formed at the bottom of the discharge pipe wall, and an oil collecting trough 51 is formed inside the oil collecting section. The oil inlet holes 23 are connected to the oil collecting trough 51. An oil delivery pipe 5 is provided in the oil collecting section, connecting the oil collecting trough 51 and the oil supply tank 3. The oil delivery pipe 5 is inclined from the oil collecting trough 51 to the oil supply tank 3, transferring the grease collected in the oil collecting trough 51 to the oil supply tank 3.

[0068] Because of the grease sprayed from the atomizing nozzle 22 and the grease left on the pipe wall during feed pellet transport, the grease on the pipe wall collects and flows along the discharge pipe. When the flowing grease passes through the oil inlet 23, it flows into the oil collection trough 51 and is then collected. The oil collection section then transfers the collected grease to the oil supply tank 3, facilitating grease reuse and reducing the direct flow of grease into the receiving tank 4 (where the receiving tank 4 is located...). Figure 1 The quantity within the bid range is reduced to minimize the possibility of excessive oil content caused by feed pellets being soaked in oil.

[0069] The oil collection section includes an oil collection tank 52, through-hole columns 53, a linkage bar 54, and a drive cylinder 55. The oil collection tank 52 is fixed to the outer wall of the discharge pipe and is located on one side of the bottom of the discharge pipe. An oil collection trough 51 is located inside the oil collection tank 52, and an oil delivery pipe 5 is fixed to the bottom of the oil collection tank 52. The through-hole columns 53 slide up and down along the oil inlet holes 23 and extend into the oil collection trough 51. Each through-hole column 53 corresponds to one of the oil inlet holes 23, and the diameter of the through-hole column 53 is smaller than the diameter of the oil inlet hole 23. Adjacent through-hole columns 53 are linked together by the linkage bar 54, and the vertical height of the through-hole columns 53 is determined according to the position of the corresponding oil inlet hole 23. The length of the through-hole columns 53 gradually increases from the middle to both sides. The drive cylinder 55 is fixed to the outside of the bottom of the oil collection tank 52. The piston rod of the drive cylinder 55 slides up and down along the oil collection tank 52, and the top of the piston rod is fixed to the linkage bar 54.

[0070] Initially, the piston rod of the drive cylinder 55 is at its lowest point, and the linkage bar 54 drives the through-hole column 53 to be in the oil collection groove 51. When the drive cylinder 55 drives the piston rod to move upward, the linkage bar 54 drives the through-hole column 53 to slide upward into the oil inlet hole 23 until the piston rod moves to its highest point. At this point, the top end face of the through-hole column 53 moves to the position of the opening of the oil inlet hole 23 near the transmission hole 21. At this time, the through-hole column 53 clears the oil inlet hole 23, pushing out the residual debris when the feed particles slide through the oil inlet hole 23, so that the residual debris is carried away by the feed particles, reducing the possibility of blockage of the oil inlet hole 23.

[0071] See Figure 4 and Figure 5 The discharge pipe includes a pipe body 2, a connecting ring 24, a transmission assembly, and a cleaning assembly. The pipe body 2 is fixed to the extruder body 1, and a transmission hole 21 is formed in the pipe body 2. The connecting ring 24 has a circular ring structure, and a rotating groove 26 is formed circumferentially on the inner circumferential sidewall of the pipe body 2. The connecting ring 24 is rotatably connected to the inner circumferential sidewall of the pipe body 2 and is located in the rotating groove 26. The inner diameter of the connecting ring 24 is equal to the inner diameter of the pipe body 2. The oil inlet hole 23 includes a first oil inlet hole 231 and a second oil inlet hole 232. The second oil inlet hole 232 is located in the pipe body 2, and the first oil inlet hole 231 is located in the connecting ring 24. There are multiple sets of second oil inlets 232, which are spaced apart along the axial direction of the pipe body 2. Each set of second oil inlets 232 has multiple sets, which are spaced apart, and adjacent sets of second oil inlets 232 are staggered. The connecting ring 24 has multiple oil collection areas 241 formed along the circumference. Each oil collection area 241 has a set of first oil inlet holes 231. When the connecting ring 24 rotates to the point where the oil collection area 241 is directly above the second oil inlet hole 232, the first oil inlet hole 231 of each set corresponds to the second oil inlet hole 232 and their central axes coincide.

[0072] The transmission assembly is located on the pipe body 2. When the through-hole column 53 slides away from the transmission hole 21, the transmission assembly drives the connecting ring 24 to rotate until the next adjacent oil collection area 241 moves directly above the second oil inlet hole 232. At this time, the first oil inlet hole 231 and the second oil inlet hole 232 are aligned. The rotation of the connecting ring 24 causes the oil collection area 241, which was originally facing the second oil inlet hole 232, to move away from the second oil inlet hole 232. At this time, some feed debris that was not carried away by the feed particles moves away from the second oil inlet hole 232.

[0073] See Figure 4 and Figure 6 The transmission assembly includes a transmission rope 6, a transmission ring 61, a transmission coil spring 62, a first sliding tooth 63, a first support tooth 64, a second sliding tooth 65, and a second support tooth 66.

[0074] A transmission groove 27, communicating with the rotating groove 26, is formed inside the tube body 2. The transmission groove 27 is an annular groove structure and extends circumferentially with the central axis of the connecting ring 24 as the center. The transmission ring 61 is installed in the transmission groove 27 and is rotatably connected to the tube body 2. The connecting ring 24 and the transmission ring 61 are coaxially arranged, and the outer peripheral sidewall of the transmission ring 61 is in sliding contact with the groove wall of the transmission groove 27. A transmission coil spring 62 is wound around the tube body 2 and located inside the transmission groove 27. One end of the transmission coil spring 62 is engaged with the transmission ring 61, and the other end is engaged with the tube body 2.

[0075] The pipe body 2 has a rope groove that surrounds and communicates with the transmission groove 27. The transmission rope 6 slides through the pipe body 2 and is wrapped around the outer periphery of the transmission ring 61 and located in the rope groove. One end of the transmission rope 6 is fixed to the transmission ring 61, and the other end extends into the oil collection groove 51 and is fixed to the linkage bar 54.

[0076] Multiple second sliding teeth 65 are fixed circumferentially at one end of the connecting ring 24 facing the transmission ring 61, and multiple second support teeth 66 are fixed at one end of the transmission ring 61 facing the connecting ring 24. The second support teeth 66 and the second sliding teeth 65 are made of a plastic material with a certain degree of elasticity and have a right-angled triangular tooth structure. The second sliding teeth 65 mesh with the second support teeth 66.

[0077] The tube body 2 has a circumferentially formed sliding groove 28 with an annular groove structure. The central axis of the sliding groove 28 coincides with the central axis of the rotating groove 26, and the sliding groove 28 and the rotating groove 26 are connected. Multiple first sliding teeth 63 are fixed circumferentially at the end of the connecting ring 24 away from the transmission ring 61, and slide within the sliding groove 28. Multiple first support teeth 64 are fixed to the side wall of the sliding groove 28 opposite to the rotating groove 26, and are spaced circumferentially. The first support teeth 64 and the first sliding teeth 63 are made of elastic plastic and have a right-angled triangular tooth structure. The first sliding teeth 63 mesh with the first support teeth 64. To facilitate the installation of the first sliding teeth 63 and the second sliding teeth 65, the connecting ring 24 can be configured with a "U"-shaped cross-section.

[0078] When the through-hole post 53 slides away from the transmission hole 21, the linkage bar 54 pulls the transmission rope 6. At this time, the transmission ring 61 releases the transmission rope 6, the transmission coil spring 62 enters the elastic winding state, and the second support tooth 66 provides unidirectional support to the second sliding tooth 65, causing the transmission ring 61 to drive the connecting ring 24 to rotate, while the first sliding tooth 63 slides on the first support tooth 64. When the through-hole post 53 slides away from the transmission hole 21, the next adjacent oil collection area 241 moves to face the second oil inlet hole 232, and at this time, the first oil inlet hole 231 and the second oil inlet hole 232 correspond one-to-one and are connected.

[0079] When the through-hole post 53 slides toward the transmission hole 21, the transmission rope 6 loosens, and the transmission coil spring 62 is released elastically, causing the transmission ring 61 to enter a rotating state. The transmission rope 6 begins to wind back onto the outer circumference of the transmission ring 61. When the transmission ring 61 enters a rotating state, the second support tooth 66 slides on the second sliding tooth 65, while the first support tooth 64 provides unidirectional support to the first sliding tooth 63. Therefore, when the second support tooth 66 slides on the second sliding tooth 65, the connecting ring 24 is in a stationary state.

[0080] The cleaning component is installed on the pipe body 2 and located above the second oil inlet 232. When the oil collection area 241 carries the residual debris that has not been carried away by the feed through the cleaning component, the cleaning component cleans the first oil inlet 231, reducing the possibility of the first oil inlet 231 being blocked. This is beneficial for the connecting ring 24 to move the next adjacent oil collection area 241 to above the second oil inlet 232, so that the grease can continue to enter the second oil inlet 232 from the first oil inlet 231.

[0081] See Figure 3 and Figure 4The orifice cleaning assembly includes an orifice cleaning ball 7 and an orifice cleaning spring 71. An installation groove 25 is formed on the inner wall of the top of the tube body 2. The installation groove 25 is located on the side of the rotating groove 26 away from the groove opening. The installation groove 25 corresponds one-to-one with the second oil inlet hole 232, and the central axis of the installation groove 25 coincides with the second oil inlet hole 232. The orifice cleaning ball 7 corresponds one-to-one with the installation groove 25 and slides up and down within the installation groove 25. The diameter of the groove opening of the installation groove 25 is smaller than the diameter of the orifice cleaning ball 7. The orifice cleaning spring 71 is installed inside the installation groove 25. One end of the orifice cleaning spring 71 abuts against the orifice cleaning ball 7, and the other end abuts against the groove wall of the installation groove 25 on the side away from the groove opening. When the orifice cleaning spring 71 is released elastically, it pushes part of the orifice cleaning ball 7 out of the installation groove 25.

[0082] When the connecting ring 24 rotates, it pushes the cleaning ball 7 into the mounting groove 25. At this time, the cleaning spring 71 is in a compressed state. When the first oil inlet hole 231 is aligned with the mounting groove 25, the cleaning spring 71 pushes the cleaning ball 7 out of the mounting groove 25 and through the first oil inlet hole 231 into the transmission hole 21. This pushes the debris remaining in the first oil inlet hole 231 into the transmission hole 21, so that the passing feed carries the fallen debris away from the connecting ring 24.

[0083] The implementation principle of the eel puffed soft pellet compound feed processing equipment in this application is as follows:

[0084] During production, feed is sprayed out of the extruder body 1 from the discharge port 11. The feed then enters the pipe body 2, and the atomized grease sprayed from the atomizing nozzle 22 passes through it and then enters the receiving box 4 along the pipe body 2. The grease remaining in the pipe body 2 flows into the first oil inlet 231 when it passes through the oil collection area 241, and then flows into the oil collection trough 51 through the second oil inlet 232. The collected grease is finally transferred to the oil supply tank 3 through the oil delivery pipe 5.

[0085] On the other hand, this application discloses a processing technology for eel puffed soft pellet compound feed, including the following steps:

[0086] Step 1: Mix the raw materials for producing feed using a mixer;

[0087] Step 2: Grind the mixed raw materials into ultrafine powder and pass them through an 80-mesh sieve;

[0088] Step 3: Condition the sieved raw material with steam;

[0089] Step 4: The conditioned raw material is extruded at low temperature through the extruder 1, and oil is sprayed at the same time as the feed pellets are sprayed out of the extruder 1.

[0090] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A processing equipment for eel puffed soft pellet compound feed, characterized in that: include The extruder body (1) has a discharge port (11). The discharge pipe is fixed to the extruder body (1) and the discharge pipe has a transmission hole (21) that communicates with the discharge port (11). The receiving box (4) is open at the top, and the side of the discharge pipe away from the discharge port (11) is located above the receiving box (4); Atomizing nozzles (22) are disposed on the discharge pipe and near the discharge port (11). There are multiple atomizing nozzles (22) and they are evenly spaced along the circumference. An oil supply tank (3) is provided on the extruder body (1), and the oil supply tank (3) is provided with an oil supply pipe (32) connected to the atomizing nozzle (22). An oil collecting section is located on the outer periphery of the discharge pipe and away from the discharge port (11), and an oil collecting groove (51) is formed in the oil collecting section. The discharge pipe has multiple oil inlet holes (23) that connect to the oil collection tank (51), and the oil collection part is provided with an oil delivery pipe (5) that communicates with the oil inlet holes (23) and delivers grease to the oil supply tank (3). The oil collection section includes an oil collection tank (52), a through-hole column (53), a linkage bar (54), and a drive cylinder (55); The oil collection tank (52) is located on the outer wall of the discharge pipe; The through-hole column (53) corresponds one-to-one with the oil inlet hole (23). The through-hole column (53) slides up and down in the oil inlet hole (23). The linkage bar (54) links the through-hole column (53). The drive cylinder (55) is located in the oil collection tank (52). The piston rod of the drive cylinder (55) is connected to the linkage bar (54). The drive cylinder (55) drives the through hole column (53) to slide towards the transmission hole (21) to the opening of the oil inlet hole (23).

2. The eel puffed soft pellet compound feed processing equipment according to claim 1, characterized in that: The discharge pipe includes a pipe body (2), a connecting ring (24), a transmission assembly, and a hole cleaning assembly; The tube body (2) is fixed to the extruder body (1), and the connecting ring (24) is rotatably connected to the inner circumferential side wall of the tube body (2). The connecting ring (24) has multiple oil collection areas (241) along the circumferential direction. The oil inlet (23) includes a first oil inlet (231) and a second oil inlet (232). The first oil inlet (231) is formed on the connecting ring (24). There are multiple first oil inlets (231) and they are disposed in the oil collection area (241). The second oil inlet (232) is located in the pipe body (2), and the first oil inlet (231) and the second oil inlet (232) are coaxially arranged when they are connected to each other; The transmission assembly is disposed on the pipe body (2). When the through-hole column (53) moves away from the transmission hole (21), the transmission assembly drives the connecting ring (24) to rotate so that the first oil inlet (231) and the second oil inlet (232) of the next adjacent oil collection area (241) are aligned. The hole cleaning assembly is disposed on the pipe body (2) and located above the second oil inlet (232). When the connecting ring (24) rotates, the hole cleaning assembly clears the first oil inlet (231) that it passes through.

3. The eel puffed soft pellet compound feed processing equipment according to claim 2, characterized in that: The transmission assembly includes a transmission rope (6), a transmission ring (61), a transmission coil spring (62), a first sliding tooth (63), a first support tooth (64), a second sliding tooth (65), and a second support tooth (66). The transmission ring (61) is rotatably connected to the tube body (2) and coaxially arranged with the connecting ring (24). The transmission coil spring (62) is arranged inside the transmission ring (61). One end of the transmission coil spring (62) is engaged with the inner wall of the transmission ring (61), and the other end is engaged with the tube body (2). The transmission rope (6) is threaded through the tube (2) and wrapped around the outer periphery of the transmission ring (61). One end of the transmission rope (6) is fixed to the transmission ring (61) and the other end is fixed to the linkage bar (54). The first sliding teeth (63) are multiple and are arranged circumferentially at one end of the connecting ring (24) away from the transmission ring (61). The first support teeth (64) are arranged on the tube body (2). The first sliding teeth (63) mesh with the first support teeth (64). The second sliding teeth (65) are multiple and are arranged circumferentially at one end of the connecting ring (24) near the transmission ring (61), and the second support teeth (66) are arranged at the end of the transmission ring (61). The second sliding teeth (65) mesh with the second support teeth (66). When the through-hole post (53) is away from the transmission hole (21) and the transmission ring (61) releases the transmission rope (6), the second support tooth (66) supports the second sliding tooth (65) in one direction, and at this time the first sliding tooth (63) slides on the first support tooth (64). When the through-hole post (53) is close to the transmission hole (21) and the transmission ring (61) is wrapped around the transmission rope (6), the first support tooth (64) supports the sliding tooth in one direction, and the second support tooth (66) slides on the second sliding tooth (65).

4. The eel puffed soft pellet compound feed processing equipment according to claim 2, characterized in that: The hole cleaning assembly includes a hole cleaning ball (7) and a hole cleaning spring (71); The inner wall of the pipe body (2) is formed with an installation groove (25), the installation groove (25) is located above the second oil inlet hole (232), the cleaning ball (7) slides up and down in the installation groove (25), and the diameter of the groove opening of the installation groove (25) is smaller than the diameter of the cleaning ball (7); The hole-clearing spring (71) is installed in the mounting groove (25), and the hole-clearing spring (71) drives the hole-clearing ball (7) to protrude out of the mounting groove (25); When the first oil inlet hole (231) is aligned with the mounting groove (25), the cleaning ball (7) passes through the first oil inlet hole (231) into the transmission hole (21).

5. The eel puffed soft pellet compound feed processing equipment according to claim 2, characterized in that: There are multiple sets of the second oil inlet holes (232), and each set of the second oil inlet holes (232) has multiple holes and is arranged at intervals along the circumference. The second oil inlet holes (232) of adjacent sets are staggered.

6. The eel puffed soft pellet compound feed processing equipment according to claim 1, characterized in that: The discharge pipe moves downward along an arc-shaped trajectory away from the extruder body (1).

7. A processing method for extruded soft pellet compound feed for eels, employing the extruded soft pellet compound feed processing equipment for eels as described in any one of claims 1-6, characterized in that, Includes the following steps: S1: Raw material mixing; S2: The mixed raw materials are ultra-finely pulverized and sieved; S3: Steam conditioning of the sieved raw material; S4: The conditioned raw material is puffed and sprayed with oil through the puffing machine (1).

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