An extraction device for fish collagen peptides

Abstract

This utility model relates to the field of collagen peptide extraction technology, specifically an extraction device for fish collagen peptides. It includes a frame assembly, an extraction assembly, a feeding assembly, and a stirring assembly. The frame assembly includes a mounting frame; the extraction assembly includes an extraction cylinder; the feeding assembly includes a feeding cylinder; and the stirring assembly includes a motor and a filter box. The inner wall of the extraction cylinder is fully welded with a heat-conducting plate, forming a sealed heating layer between the extraction cylinder and the heat-conducting plate. A steam pipe is spirally wound inside the heating layer. Stirring blades are welded to the outer wall of the stirring shaft. The stirring blades exert shear force on the material, disrupting the raw material's structure, making it easier for collagen to be released from the fibers and dissolve in the aqueous phase. Simultaneously, it prevents fish skin residue or colloids from accumulating at the bottom of the extraction cylinder and prevents material near the heat-conducting plate from carbonizing due to localized overheating. During drainage, the stirring blades can push the material towards the conveying pipe, reducing residue.

Description

Technical Field

[0001] This utility model relates to the field of collagen peptide extraction technology, specifically to an extraction device for fish collagen peptides. Background Technology

[0002] Fish collagen peptides are bioactive substances extracted from fish skin, bones, and other parts of the fish. Rich in amino acids, they are beneficial to the human body. In the food, pharmaceutical, and cosmetic industries, fish collagen peptides have attracted considerable attention due to their excellent biocompatibility, high nutritional value, and easy absorption. Their extraction process typically requires a combination of heating and stirring to promote the hydrolysis and dissolution of collagen.

[0003] However, existing extraction equipment still has the following shortcomings: First, traditional steam heating methods mostly use straight heating tubes or single-layer jacket structures, which leads to uneven heat distribution and easily causes local overheating, which denatures collagen and reduces product quality; Second, the stirring device and heating system lack coordinated design, the material flow path is unreasonable, which affects the heat and mass transfer efficiency and prolongs the extraction cycle. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide an extraction device for fish collagen peptides, which solves the problems of uneven heat distribution, which easily causes local overheating and collagen denaturation, and unreasonable material flow path, which affects the efficiency of heat and mass transfer. The heating layer composed of a spiral steam pipe and a heat-conducting plate improves the uniformity of heat conduction. The linkage design of the stirring blade and the cleaning brush promotes material mixing while achieving dynamic cleaning of the heating surface.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an extraction device for fish collagen peptides, comprising a frame assembly, an extraction assembly, a feeding assembly, and a stirring assembly. The frame assembly includes a mounting frame, the extraction assembly includes an extraction cylinder, the feeding assembly includes a feeding cylinder, and the stirring assembly includes a motor and a filter box. Three sets of mounting seats are symmetrically connected to the inner wall of the mounting frame. Two sets of mounting seats located on the upper inner side of the mounting frame are bolted together with a positioning horizontal plate, and two sets of mounting seats located on the lower inner side of the mounting frame are bolted together with positioning side plates. The inner wall of the extraction cylinder is fully welded with a heat-conducting plate, forming a sealed heating layer between the extraction cylinder and the heat-conducting plate. A steam pipe is spirally wound inside the heating layer. A delivery pipe with a solenoid valve is welded to the bottom of the extraction cylinder. One end of the feeding cylinder is threadedly connected to a feeding pipe. A pressure relief pipe is connected to the top of the extraction cylinder. A stirring shaft is coaxially arranged inside the extraction cylinder, and stirring blades are welded to the outer wall of the stirring shaft.

[0006] The beneficial effects of this invention are as follows: When the stirring blades rotate, the material forms turbulence in the extraction cylinder, which breaks the stagnant layer at the heating interface, allowing heat to be transferred from the heat-conducting plate to the center of the material more quickly. The stirring blades generate shear force on the material, which breaks the structure of the raw material, making it easier for collagen to be released from the fiber and dissolved in the aqueous phase. At the same time, it avoids the accumulation of fish skin residue or colloids at the bottom of the extraction cylinder and prevents the material near the heat-conducting plate from carbonizing due to local overheating, which would affect the quality of the extract. During drainage, the stirring blades can push the material towards the conveying pipe to reduce residue. The inner wall of the heat-conducting plate is scrubbed with a cleaning brush to remove material residue and ensure heat transfer efficiency.

[0007] For use in horizontal positioning and vibration-resistant support of the extraction cylinder, and for mounting and securing the filter box:

[0008] As a further improvement to the above technical solution: the mounting base is installed on the inner wall of the mounting frame by bolts, the inner wall of the positioning plate is bonded with a 5mm thick nitrile rubber anti-slip washer, and the positioning plate is connected to the extraction cylinder by bolts.

[0009] The beneficial effects of this improvement are as follows: the positioning plate is used for horizontal positioning and anti-vibration support of the extraction cylinder; the positioning side plate is used for installation and fixation of the filter box; and the anti-slip gasket can increase the friction between the extraction cylinder and the positioning plate.

[0010] To conduct heat through the heat-conducting plate and prevent the raw materials from being dispersed or contaminated by steam:

[0011] As a further improvement to the above technical solution: the steam pipe is made of 304 stainless steel seamless pipe with a diameter of 25mm, spirally wound around the outer wall of the heat-conducting plate with a pitch of 80mm, and fixed to the heat-conducting plate with high-temperature resistant sealant. The two ends are respectively connected to the DN20 air inlet pipe and the exhaust pipe.

[0012] The beneficial effects of this improvement are: the spiral steam pipe allows the steam to flow slowly within the heating layer, and the heat is transferred to the inner wall of the heat-conducting plate. The steam does not directly contact the raw material, but conducts heat through the heat-conducting plate, thus avoiding the raw material being dispersed or contaminated by the steam.

[0013] To ensure safe equipment operation, the pressure relief pipe is installed so that when the pressure inside the extraction cylinder exceeds 0.35 MPa, the pipe can be manually opened to release pressure.

[0014] As a further improvement to the above technical solution: the pressure relief pipe is equipped with a quick-opening manual gate valve with a pressure gauge, the outlet end of the conveying pipe is sealed to the feed inlet at the top of the filter box by a clamp, and a pneumatic butterfly valve is installed on the conveying pipe.

[0015] The beneficial effects of this improvement are as follows: by setting up a pressure relief pipe, when the pressure inside the extraction cylinder exceeds 0.35MPa, the pressure relief pipe can be manually opened to release the pressure, ensuring the safe operation of the equipment. After extraction is completed, the steam inlet valve is closed first, and the pneumatic butterfly valve of the conveying pipe is opened to discharge the material after the pressure drops below 0.1MPa.

[0016] To ensure that cleaning fluid is injected into the feed pipe during cleaning, the storage pipe and extraction cylinder can be cleaned in conjunction:

[0017] As a further improvement to the above technical solution: the end of the feeding tube away from the feeding cylinder is equipped with a quick-release threaded connection sealing cap, the inner side of the feeding cylinder is nested with a storage tube, and the two form a partition cavity. Four sets of 500W ceramic heating plates are evenly arranged in the partition cavity. The storage tube is made of 316L stainless steel, and its top is sealed to the feeding tube by argon arc welding. The heating plate is electrically connected to the operation panel.

[0018] The beneficial effects of this improvement are as follows: When using the device, open the sealing cover, add the material into the storage tube through the feeding pipe, and then lock the sealing cover. After the material is added into the storage tube through the feeding pipe, if preheating of the material is required, start the operation of the heating plate. The heating plate heats the material through the storage tube, achieving preheating. The preheated material enters the extraction cylinder, where the heating plate can preheat the material to the set temperature. The preheated material falls into the extraction cylinder by its own weight. During cleaning, cleaning fluid is injected into the feeding pipe, enabling the storage tube and the extraction cylinder to be cleaned in conjunction.

[0019] In order for the motor to operate and to stir the material inside the extraction cylinder:

[0020] As a further improvement to the above technical solution: the motor is mounted on the top of the extraction cylinder via a cast iron shock absorber with a spring damper, the top of the stirring shaft penetrates the wall of the extraction cylinder and is rigidly connected to the output end of the motor via a coupling, and the end of the stirring shaft away from the motor is rotatably connected to the bearing seat at the bottom of the extraction cylinder via a deep groove ball bearing.

[0021] The beneficial effects of this improvement are: starting the motor, the motor works to stir the material in the extraction cylinder, and heat is conducted through the heat conduction plate to achieve the extraction of the material.

[0022] To clean the inner wall of the heat transfer plate using a cleaning brush, removing any residual material and ensuring efficient heat transfer:

[0023] As a further improvement to the above technical solution: a connecting rod is connected to the outer wall of the stirring shaft, and a cleaning brush is connected to the end of the connecting rod away from the stirring shaft, with the bristles maintaining a 5mm contact pressure with the inner wall of the heat-conducting plate.

[0024] The beneficial effects of this improvement are as follows: When the stirring blades rotate, the material forms turbulence in the extraction cylinder, which breaks the stagnant layer at the heating interface, allowing heat to be transferred from the heat-conducting plate to the center of the material more quickly. The stirring blades generate shear force on the material, which breaks down the raw material's structure, making it easier for collagen to be released from the fibers and dissolved in the aqueous phase. At the same time, it prevents fish skin residue or colloids from accumulating at the bottom of the extraction cylinder and prevents the material near the heat-conducting plate from carbonizing due to local overheating, which would affect the quality of the extract. During drainage, the stirring blades can push the material towards the conveying pipe, reducing residue. The inner wall of the heat-conducting plate is scrubbed with a cleaning brush to remove material residue and ensure heat transfer efficiency.

[0025] In order for the extract to enter the filter box through the delivery pipe, the filter screen achieves solid-liquid separation:

[0026] As a further improvement to the above technical solution: the filter box is located below the extraction cylinder, the two sides of the filter box are connected to the mounting frame through positioning side plates, the inner side of the filter box is provided with a 304 stainless steel filter screen with a pore size of 0.2mm, the front is hinged with a quick-opening box door, and the bottom is welded with a discharge pipe with a pneumatic ball valve.

[0027] The beneficial effects of this improvement are as follows: the raw material is extracted by steam heating in the extraction cylinder to generate a solution containing collagen peptides and waste. The extract enters the filter box through the conveying pipe, and the filter screen realizes solid-liquid separation. The filtrate enters the subsequent processing steps. Attached Figure Description

[0028] Figure 1 This is a front view structural diagram of the present invention.

[0029] Figure 2 This is a cross-sectional view of the extraction cylinder of this utility model.

[0030] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.

[0031] Figure 4 This is a top view of the positioning cross plate of this utility model.

[0032] Figure 5 This is a cross-sectional view of the feeding cylinder of this utility model.

[0033] In the diagram: 1. Frame assembly; 11. Mounting bracket; 12. Mounting base; 13. Positioning horizontal plate; 14. Anti-slip pad; 15. Positioning side plate; 2. Extraction assembly; 21. Extraction cylinder; 22. Heating layer; 23. Heat-conducting plate; 24. Steam pipe; 25. Conveying pipe; 3. Feeding assembly; 31. Feeding cylinder; 32. Pressure relief pipe; 33. Feeding pipe; 34. Sealing cover; 35. Partition cavity; 36. Heating plate; 37. Storage pipe; 4. Stirring assembly; 41. Motor; 42. Stirring shaft; 43. Stirring blades; 44. Connecting rod; 45. Cleaning brush; 46. Filter box. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0035] like Figure 1-5As shown, an extraction device for fish collagen peptides includes a frame assembly 1, an extraction assembly 2, a feeding assembly 3, and a stirring assembly 4. The frame assembly 1 includes a mounting frame 11, the extraction assembly 2 includes an extraction cylinder 21, the feeding assembly 3 includes a feeding cylinder 31, and the stirring assembly 4 includes a motor 41 and a filter box 46. Three sets of mounting seats 12 are symmetrically connected to the inner wall of the mounting frame 11. The two sets of mounting seats 12 located on the upper inner side of the mounting frame 11 are fixedly connected to a positioning horizontal plate 13 by bolts, and the mounting seats 12 located on the lower inner side of the mounting frame 11 are connected to a positioning side plate 15 by bolts. The inner wall of the extraction cylinder 21 is fully welded with a heat-conducting plate 23, forming a sealed heating layer 22 between the extraction cylinder 21 and the heat-conducting plate 23. A steam pipe 24 is spirally wound inside the heating layer 22. A delivery pipe 25 with a solenoid valve is welded to the bottom of the extraction cylinder 21. One end of the feeding cylinder 31 is threadedly connected to the feeding pipe 33. A pressure relief pipe 32 is connected to the top of the extraction cylinder 21. A stirring shaft 42 is coaxially arranged inside the extraction cylinder 21, and stirring blades 43 are welded to the outer wall of the stirring shaft 42. The mounting base 12 is bolted to the inner wall of the mounting bracket 11. A 5mm thick nitrile rubber anti-slip material is bonded to the inner wall of the positioning cross plate 13. The positioning horizontal plate 13 is connected to the extraction cylinder 21 by bolts. The positioning horizontal plate 13 is used for horizontal positioning and anti-vibration support of the extraction cylinder 21. The positioning side plate 15 is used for the installation and fixation of the filter box 46. The anti-slip washer 14 increases the friction between the extraction cylinder 21 and the positioning horizontal plate 13. The steam pipe 24 is made of 304 stainless steel seamless pipe with a diameter of 25mm, spirally wound around the outer wall of the heat-conducting plate 23 with a pitch of 80mm, and fixed to the heat-conducting plate 23 with high-temperature resistant sealant. Both ends are connected to a DN20 air inlet pipe and an exhaust pipe, respectively. The spiral steam pipe 24 allows steam to... Steam flows slowly within the heating layer 22, transferring heat to the inner wall of the heat-conducting plate 23. The steam does not directly contact the raw material; heat is conducted through the heat-conducting plate 23, preventing the raw material from being dispersed or contaminated by the steam. The pressure relief pipe 32 is equipped with a quick-opening manual gate valve with a pressure gauge. The outlet end of the conveying pipe 25 is sealed to the top inlet of the filter box 46 via a clamp. A pneumatic butterfly valve is installed on the conveying pipe 25. With the pressure relief pipe 32 in place, when the pressure inside the extraction cylinder 21 exceeds 0.35 MPa, the pressure relief pipe 32 can be manually opened to release the pressure, ensuring safe operation of the equipment. After extraction, the steam inlet valve is closed first, and the pressure is allowed to drop to 0.Below 1MPa, open the pneumatic butterfly valve on the conveying pipe 25 to discharge material. The end of the feeding pipe 33 away from the feeding cylinder 31 is connected to a quick-release threaded sealing cap 34. The storage pipe 37 is nested inside the feeding cylinder 31, forming a partition cavity 35 between them. Four sets of 500W ceramic heating plates 36 are evenly arranged in the partition cavity 35. The storage pipe 37 is made of 316L stainless steel, and its top is sealed to the feeding pipe 33 by argon arc welding. The heating plates 36 are electrically connected to the operation panel. When using the device, open the sealing cap 34, add the material into the storage pipe 37 through the feeding pipe 33, and then lock the sealing cap 34. After entering the material, when preheating is required, the heating plate 36 is activated. The heating plate 36 heats the material and conducts heat through the storage pipe 37 to preheat it. The preheated material enters the extraction cylinder 21. The heating plate 36 can preheat the material to the set temperature. The preheated material falls into the extraction cylinder 21 by its own weight. During cleaning, cleaning fluid is injected into the feeding pipe 33 to perform linkage cleaning of the storage pipe 37 and the extraction cylinder 21. The motor 41 is mounted on the top of the extraction cylinder 21 through a cast iron shock-absorbing seat with a spring damper. The top of the stirring shaft 42 penetrates the wall of the extraction cylinder 21 and is rigidly connected to the output end of the motor 41 through a coupling. The stirring shaft 42, at the end furthest from the motor 41, is rotatably connected to the bottom bearing seat of the extraction cylinder 21 via a deep groove ball bearing. When the motor 41 is started, it operates to stir the material inside the extraction cylinder 21 and conducts heat through the heat-conducting plate 23 to extract the material. A connecting rod 44 is connected to the outer wall of the stirring shaft 42, and a cleaning brush 45 is connected to the end of the connecting rod 44 furthest from the stirring shaft 42. The brush bristles maintain a 5mm contact pressure with the inner wall of the heat-conducting plate 23. When the stirring blades 43 rotate, the material forms turbulence inside the extraction cylinder 21, disrupting the stagnant layer at the heating interface and allowing heat to be transferred more quickly from the heat-conducting plate 23 to the center of the material. The blade 43 exerts shear force on the material, disrupting the raw material's structure and making it easier for collagen to be released from the fibers and dissolve in the aqueous phase. Simultaneously, it prevents fish skin residue or colloids from accumulating at the bottom of the extraction cylinder 21, and prevents material near the heat-conducting plate 23 from carbonizing due to localized overheating, which would affect the quality of the extract. During drainage, the stirring blade 43 pushes the material towards the conveying pipe 25, reducing residue. The cleaning brush 45 scrubs the inner wall of the heat-conducting plate 23 to remove material residue and ensure efficient heat transfer. The filter box 46 is located below the extraction cylinder 21, and its two sides are connected to the mounting bracket 11 via positioning side plates 15. The filter box 46 has an inner aperture of 0.The filter uses a 2mm 304 stainless steel mesh, a hinged quick-opening door at the front, and a discharge pipe with a pneumatic ball valve welded to the bottom. The raw material is extracted in the extraction cylinder 21 by steam heating, producing a solution containing collagen peptides and waste. The extract enters the filter box 46 via the conveying pipe 25, where the filter achieves solid-liquid separation. The filtrate then proceeds to subsequent processing steps.

[0036] The working principle of this utility model is as follows: Open the quick-release sealing cap 34 at the end of the feeding pipe 33 away from the feeding cylinder 31, and add materials such as fish skin into the storage pipe 37 through the feeding pipe 33. Then lock the sealing cap 34. If preheating of the material is required, set the parameters on the operation panel and start the four sets of ceramic heating plates 36 in the partition cavity 35. The heating plates 36 work, and the heat is conducted to the material through the storage pipe 37 to preheat the material to the set temperature. The preheated material falls into the extraction cylinder 21 due to its own weight. Start the motor 41, and its output... The coupling drives the stirring shaft 42 to rotate, and the stirring blades 43 on the stirring shaft 42 rotate, causing the material to form turbulence in the extraction cylinder 21. At the same time, steam flows slowly in the spiral steam pipe 24, and heat is evenly transferred to the extraction cylinder 21 through the heat conduction plate 23. Under the shearing force of the stirring blades 43 on the material, the structure of the raw material is broken down, making it easier for collagen to be released from the fibers and dissolve in the aqueous phase, thus achieving the extraction of the material. During this process, the pressure gauge equipped with the pressure relief pipe 32 is monitored in real time. When the pressure in the extraction cylinder 21... When the internal pressure exceeds 0.35 MPa, manually open the quick-opening manual gate valve of the pressure relief pipe 32 to release the pressure and ensure safe operation of the equipment. After extraction, first close the steam inlet valve and wait for the pressure inside the extraction cylinder 21 to drop naturally to below 0.1 MPa. Then open the pneumatic butterfly valve on the conveying pipe 25. Driven by the stirring blades 43, the material moves towards the conveying pipe 25. The solution containing collagen peptides and waste enter the filter box 46 through the conveying pipe 25. After the extract enters the filter box 46, the pore size inside the box is 0.2 mm. The 304 stainless steel filter screen performs solid-liquid separation of solution and waste. The filter residue remains on the filter screen, while the filtrate passes through the filter screen and enters the subsequent processing steps. During cleaning, cleaning solution is injected into the feeding pipe 33. The cleaning solution enters the extraction cylinder 21 through the storage pipe 37. The motor 41 is started to drive the stirring blades 43 and the cleaning brush 45 to rotate. The cleaning brush 45 scrubs the inner wall of the heat-conducting plate 23 to remove material residue, realizing the linkage cleaning of the storage pipe 37 and the extraction cylinder 21. After cleaning, the pneumatic butterfly valve of the delivery pipe 25 is opened to discharge the cleaning solution.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. An extraction device for fish collagen peptides, comprising a frame assembly (1), an extraction assembly (2), a feeding assembly (3), and a stirring assembly (4), wherein the frame assembly (1) includes a mounting frame (11), the extraction assembly (2) includes an extraction cylinder (21), the feeding assembly (3) includes a feeding cylinder (31), and the stirring assembly (4) includes a motor (41) and a filter box (46), characterized in that: The inner wall of the mounting frame (11) is symmetrically connected with three sets of mounting seats (12). The two sets of mounting seats (12) located on the upper inner side of the mounting frame (11) are fixedly connected with a positioning horizontal plate (13) by bolts. The mounting seats (12) located on the lower inner side of the mounting frame (11) are connected with a positioning side plate (15) by bolts. The inner wall of the extraction cylinder (21) is fully welded with a heat-conducting plate (23). A sealed heating layer (22) is formed between the extraction cylinder (21) and the heat-conducting plate (23). A steam pipe (24) is spirally wound inside the heating layer (22). A delivery pipe (25) with a solenoid valve is welded to the bottom of the extraction cylinder (21). One end of the feeding cylinder (31) is connected to the feeding pipe (33) by a thread. A pressure relief pipe (32) is connected to the top of the extraction cylinder (21). A stirring shaft (42) is coaxially arranged inside the extraction cylinder (21). Stirring blades (43) are welded to the outer wall of the stirring shaft (42).

2. The extraction apparatus for fish collagen peptides according to claim 1, characterized in that: The mounting base (12) is installed on the inner wall of the mounting frame (11) by bolts. The inner wall of the positioning plate (13) is bonded with a 5mm thick nitrile rubber anti-slip washer (14). The positioning plate (13) is connected to the extraction cylinder (21) by bolts.

3. The extraction apparatus for fish collagen peptides according to claim 1, characterized in that: The steam pipe (24) is made of 304 stainless steel seamless pipe with a diameter of 25mm. It is spirally wound around the outer wall of the heat-conducting plate (23) with a pitch of 80mm and fixed to the heat-conducting plate (23) with high-temperature resistant sealant. The two ends are respectively connected to the DN20 air inlet pipe and the exhaust pipe.

4. The extraction apparatus for fish collagen peptides according to claim 1, characterized in that: The pressure relief pipe (32) is equipped with a quick-opening manual gate valve with a pressure gauge. The outlet end of the conveying pipe (25) is sealed to the top feed port of the filter box (46) by a clamp. A pneumatic butterfly valve is installed on the pipeline of the conveying pipe (25).

5. The extraction apparatus for fish collagen peptides according to claim 1, characterized in that: The end of the feeding tube (33) away from the feeding cylinder (31) is sealed with a quick-release threaded cap (34). The feeding cylinder (31) is nested inside the storage tube (37), forming a partition cavity (35) between them. Four sets of 500W ceramic heating plates (36) are evenly arranged in the partition cavity (35). The storage tube (37) is made of 316L stainless steel, and its top is sealed to the feeding tube (33) by argon arc welding. The heating plate (36) is electrically connected to the operation panel.

6. The extraction apparatus for fish collagen peptides according to claim 1, characterized in that: The motor (41) is mounted on the top of the extraction cylinder (21) via a cast iron shock absorber with a spring damper. The top of the stirring shaft (42) passes through the wall of the extraction cylinder (21) and is rigidly connected to the output end of the motor (41) via a coupling. The end of the stirring shaft (42) away from the motor (41) is rotatably connected to the bottom bearing seat of the extraction cylinder (21) via a deep groove ball bearing.

7. The extraction apparatus for fish collagen peptides according to claim 1, characterized in that: A connecting rod (44) is connected to the outer wall of the stirring shaft (42). A cleaning brush (45) is connected to the end of the connecting rod (44) away from the stirring shaft (42). The bristles of the brush maintain a 5mm contact pressure with the inner wall of the heat-conducting plate (23).

8. The extraction apparatus for fish collagen peptides according to claim 1, characterized in that: The filter box (46) is located below the extraction cylinder (21). The filter box (46) is connected to the mounting frame (11) on both sides through positioning side plates (15). The filter box (46) is equipped with a 304 stainless steel filter screen with a pore size of 0.2mm on the inside. The front is hinged with a quick-opening box door, and the bottom is welded with a discharge pipe with a pneumatic ball valve.

Images